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Mechanics

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Price  
  1. $0.00 - $14.99 (8)
  2. $15.00 - $24.99 (2)
  3. $25.00 - $29.99 (9)
  4. $30.00 and above (6)
Manufacturer  
  1. Elenco (15)
Brand Name  
  1. Elenco (15)
  2. Engino (5)
  3. OWI (2)
  4. Thames & Kosmos (2)
  5. Velleman (1)
Age Range  
  1. 2 to 4 Years (1)
  2. 5 to 7 Years (3)
  3. 8 to 13 Years (7)
Interest  
  1. Learning (11)
Number of Pieces  
  1. 50 to 99 (1)
  2. 100 to 199 (2)
  3. 500 to 999 (1)
  4. 1000 & Above (1)

 

1 - 25 of 25
 
In Leonardo Da Vinci's time, nautical expedition was the most expedient method of communicating with the world. Da Vinci brought forth plans for a boat with large wheel-shaped paddles that would propel it through water. The boat was relatively fas...
 (3)
$14.99
Usually ships in 1-2 days
 
Leonardo Da Vinci designed the first self-propelled cart capable of moving without being pushed or pulled manually.  This precursor to the automobile was one of the many inventions that Da Vinci created dealing with locomotion and transportat...
$17.50
Usually ships in 1-2 days
 
In Leonardo Da Vinci's time, nautical expedition was the most expedient method of communicating with the world. Da Vinci brought forth plans for a boat with large wheel-shaped paddles that would propel it through water. The boat was relatively fas...
 (3)
$14.99
Usually ships in 1-2 days
 
Leonardo Da Vinci designed the first self-propelled cart capable of moving without being pushed or pulled manually.  This precursor to the automobile was one of the many inventions that Da Vinci created dealing with locomotion and transportat...
$17.50
Usually ships in 1-2 days
 
Leonardo Da Vinci improved upon the already-established catapult design when he introduced his own version to the age-old military launching device. The plans for the new catapult employed a hand-crank that caused tension on the throw arm before r...
 (4)
$14.99
Usually ships in 1-2 days
 
In Leonardo Da Vinci's time, nautical expedition was the most expedient method of communicating with the world. Da Vinci brought forth plans for a boat with large wheel-shaped paddles that would propel it through water. The boat was relatively fas...
 (3)
$14.99
Usually ships in 1-2 days
 
Leonardo Da Vinci designed the first self-propelled cart capable of moving without being pushed or pulled manually.  This precursor to the automobile was one of the many inventions that Da Vinci created dealing with locomotion and transportat...
$17.50
Usually ships in 1-2 days
 
Leonardo Da Vinci improved upon the already-established catapult design when he introduced his own version to the age-old military launching device. The plans for the new catapult employed a hand-crank that caused tension on the throw arm before r...
 (4)
$14.99
Usually ships in 1-2 days
 
Leonardo Da Vinci improved upon the already-established catapult design when he introduced his own version to the age-old military launching device. The plans for the new catapult employed a hand-crank that caused tension on the throw arm before r...
 (4)
$14.99
Usually ships in 1-2 days
 
It is extremely difficult to create a mechanical replica of the natural movement of an animal. The beating of the dragonfly's four wings is particularly complex and Da Vinci was well aware of how difficult it would be to create this machine; he hi...
$14.99
Usually ships in 1-2 days
 
A boat with sails has a part that is submerged in the water and invisible to enemies. The pilot used a passage to get into the lower part undercover: the Mechanical Submarine. A pulley and rope system lowers the submarine, which can unhook itself ...
 (3)
$14.99
Usually ships in 1-2 days
 
The genius Da Vinci drew inspiration for his work from his direct observation of the flight of a bird. Da Vinci described its dimension, the materials with which it was to be built, its shape and how it works; the whole notebook revolves precisely...
$13.50
Usually ships in 1-2 days
 
It is extremely difficult to create a mechanical replica of the natural movement of an animal. The beating of the dragonfly's four wings is particularly complex and Da Vinci was well aware of how difficult it would be to create this machine; he hi...
$14.99
Usually ships in 1-2 days
 
A boat with sails has a part that is submerged in the water and invisible to enemies. The pilot used a passage to get into the lower part undercover: the Mechanical Submarine. A pulley and rope system lowers the submarine, which can unhook itself ...
 (3)
$14.99
Usually ships in 1-2 days
 
The genius Da Vinci drew inspiration for his work from his direct observation of the flight of a bird. Da Vinci described its dimension, the materials with which it was to be built, its shape and how it works; the whole notebook revolves precisely...
$13.50
Usually ships in 1-2 days
 
It is extremely difficult to create a mechanical replica of the natural movement of an animal. The beating of the dragonfly's four wings is particularly complex and Da Vinci was well aware of how difficult it would be to create this machine; he hi...
$14.99
Usually ships in 1-2 days
 
A boat with sails has a part that is submerged in the water and invisible to enemies. The pilot used a passage to get into the lower part undercover: the Mechanical Submarine. A pulley and rope system lowers the submarine, which can unhook itself ...
 (3)
$14.99
Usually ships in 1-2 days
 
The genius Da Vinci drew inspiration for his work from his direct observation of the flight of a bird. Da Vinci described its dimension, the materials with which it was to be built, its shape and how it works; the whole notebook revolves precisely...
$13.50
Usually ships in 1-2 days
 
In Leonardo Da Vinci's time, nautical expedition was the most expedient method of communicating with the world. Da Vinci brought forth plans for a boat with large wheel-shaped paddles that would propel it through water. The boat was relatively fas...
 (3)
$14.99
Usually ships in 1-2 days
 
Leonardo Da Vinci designed the first self-propelled cart capable of moving without being pushed or pulled manually.  This precursor to the automobile was one of the many inventions that Da Vinci created dealing with locomotion and transportat...
$17.50
Usually ships in 1-2 days
 
Leonardo Da Vinci improved upon the already-established catapult design when he introduced his own version to the age-old military launching device. The plans for the new catapult employed a hand-crank that caused tension on the throw arm before r...
 (4)
$14.99
Usually ships in 1-2 days
 
It is extremely difficult to create a mechanical replica of the natural movement of an animal. The beating of the dragonfly's four wings is particularly complex and Da Vinci was well aware of how difficult it would be to create this machine; he hi...
$14.99
Usually ships in 1-2 days
 
A boat with sails has a part that is submerged in the water and invisible to enemies. The pilot used a passage to get into the lower part undercover: the Mechanical Submarine. A pulley and rope system lowers the submarine, which can unhook itself ...
 (3)
$14.99
Usually ships in 1-2 days
 
The genius Da Vinci drew inspiration for his work from his direct observation of the flight of a bird. Da Vinci described its dimension, the materials with which it was to be built, its shape and how it works; the whole notebook revolves precisely...
$13.50
Usually ships in 1-2 days
 
Leonardo Da Vinci's idea was to build a very powerful machine, which could throw eight large projectiles at the same time. He positioned eight long arms in a circle around a central pin, each of which had a sling capable of throwing a projectile a...
$14.50
Usually ships in 1-2 days
 
A wooden shield protects the prow of the ship and the cannon.  Leonardo Da Vinci studied this subject closely, identified the weak points and invented his own version with many more functions.  He concentrated on the structure of the ves...
 (1)
$13.99
Usually ships in 1-2 days
 
Leonardo Da Vinci's idea was to build a very powerful machine, which could throw eight large projectiles at the same time. He positioned eight long arms in a circle around a central pin, each of which had a sling capable of throwing a projectile a...
$14.50
Usually ships in 1-2 days
 
A wooden shield protects the prow of the ship and the cannon.  Leonardo Da Vinci studied this subject closely, identified the weak points and invented his own version with many more functions.  He concentrated on the structure of the ves...
 (1)
$13.99
Usually ships in 1-2 days
 
Get the MECHANICS: Levers & Linkages set and learn how Levers can be used for increasing an applied force or changing the direction of motion. Find out how you can create models with complex motion by connecting many levers together and learn ...
$25.99
Usually ships in 1-2 days
 
Leonardo Da Vinci's idea was to build a very powerful machine, which could throw eight large projectiles at the same time. He positioned eight long arms in a circle around a central pin, each of which had a sling capable of throwing a projectile a...
$14.50
Usually ships in 1-2 days
 
A wooden shield protects the prow of the ship and the cannon.  Leonardo Da Vinci studied this subject closely, identified the weak points and invented his own version with many more functions.  He concentrated on the structure of the ves...
 (1)
$13.99
Usually ships in 1-2 days
 
Get the MECHANICS: Levers & Linkages set and learn how Levers can be used for increasing an applied force or changing the direction of motion. Find out how you can create models with complex motion by connecting many levers together and learn ...
$25.99
Usually ships in 1-2 days
 
Get the MECHANICS: Levers & Linkages set and learn how Levers can be used for increasing an applied force or changing the direction of motion. Find out how you can create models with complex motion by connecting many levers together and learn ...
$25.99
Usually ships in 1-2 days
 
Learn how Wheels and Axles use friction to move objects easily and how big tyres compare to small tyres. Find out how an Inclined Plane can be used for lifting heavy objects and how another form of inclined plane, the wedge, is used in every day a...
$28.99
Usually ships in 1-2 days
 
Learn how pulley drives can be used to transfer force with reduced friction and how they can increase force or speed at amazing levels. Pulleys have been used for thousands of years and are essential parts of complex machines in modern times, solv...
$25.99
Usually ships in 1-2 days
 
Engino for ages 8 and up. With Engino' s mechanics cams & cranks set learn how you can transmit power using cams and cranks and how they can be used to convert reciprocal to linear motion. Discover how these mechanisms are crucial elements of ...
$25.99
Usually ships in 1-2 days
 
Learn how Wheels and Axles use friction to move objects easily and how big tyres compare to small tyres. Find out how an Inclined Plane can be used for lifting heavy objects and how another form of inclined plane, the wedge, is used in every day a...
$28.99
Usually ships in 1-2 days
 
Learn how pulley drives can be used to transfer force with reduced friction and how they can increase force or speed at amazing levels. Pulleys have been used for thousands of years and are essential parts of complex machines in modern times, solv...
$25.99
Usually ships in 1-2 days
 
Engino for ages 8 and up. With Engino' s mechanics cams & cranks set learn how you can transmit power using cams and cranks and how they can be used to convert reciprocal to linear motion. Discover how these mechanisms are crucial elements of ...
$25.99
Usually ships in 1-2 days
 
Learn how Wheels and Axles use friction to move objects easily and how big tyres compare to small tyres. Find out how an Inclined Plane can be used for lifting heavy objects and how another form of inclined plane, the wedge, is used in every day a...
$28.99
Usually ships in 1-2 days
 
Learn how pulley drives can be used to transfer force with reduced friction and how they can increase force or speed at amazing levels. Pulleys have been used for thousands of years and are essential parts of complex machines in modern times, solv...
$25.99
Usually ships in 1-2 days
 
Engino for ages 8 and up. With Engino' s mechanics cams & cranks set learn how you can transmit power using cams and cranks and how they can be used to convert reciprocal to linear motion. Discover how these mechanisms are crucial elements of ...
$25.99
Usually ships in 1-2 days
 
Leonardo Da Vinci's idea was to build a very powerful machine, which could throw eight large projectiles at the same time. He positioned eight long arms in a circle around a central pin, each of which had a sling capable of throwing a projectile a...
$14.50
Usually ships in 1-2 days
 
A wooden shield protects the prow of the ship and the cannon.  Leonardo Da Vinci studied this subject closely, identified the weak points and invented his own version with many more functions.  He concentrated on the structure of the ves...
 (1)
$13.99
Usually ships in 1-2 days
 
Get the MECHANICS: Levers & Linkages set and learn how Levers can be used for increasing an applied force or changing the direction of motion. Find out how you can create models with complex motion by connecting many levers together and learn ...
$25.99
Usually ships in 1-2 days
 
Learn how Wheels and Axles use friction to move objects easily and how big tyres compare to small tyres. Find out how an Inclined Plane can be used for lifting heavy objects and how another form of inclined plane, the wedge, is used in every day a...
$28.99
Usually ships in 1-2 days
 
Learn how pulley drives can be used to transfer force with reduced friction and how they can increase force or speed at amazing levels. Pulleys have been used for thousands of years and are essential parts of complex machines in modern times, solv...
$25.99
Usually ships in 1-2 days
 
Engino for ages 8 and up. With Engino' s mechanics cams & cranks set learn how you can transmit power using cams and cranks and how they can be used to convert reciprocal to linear motion. Discover how these mechanisms are crucial elements of ...
$25.99
Usually ships in 1-2 days
 
Learn how Gears can easily reduce or increase speed, change force. or transfer motion from one position to another. Discover how Worm Drives are used to greatly reduce rotational speed and how screws can convert rotational motion to linear, while ...
$25.99
Usually ships in 1-2 days
 
Learn all about buildings and how they literally support our lives! Construct different types of bridges and find out how their architecture design provides massive weight support. Discover all the types of forces applied and how engineers manage ...
$25.99
Usually ships in 1-2 days
 
Learn how Gears can easily reduce or increase speed, change force. or transfer motion from one position to another. Discover how Worm Drives are used to greatly reduce rotational speed and how screws can convert rotational motion to linear, while ...
$25.99
Usually ships in 1-2 days
 
Learn all about buildings and how they literally support our lives! Construct different types of bridges and find out how their architecture design provides massive weight support. Discover all the types of forces applied and how engineers manage ...
$25.99
Usually ships in 1-2 days
 
Learn all about the ingenious Sir Isaac Newtons laws of motion which are the basis of classical mechanics that still describe most everyday life situations. Observe the effects of kinetic and potential energy and see first-hand how energy is trans...
$28.99
Usually ships in 1-2 days
 
Learn how Gears can easily reduce or increase speed, change force. or transfer motion from one position to another. Discover how Worm Drives are used to greatly reduce rotational speed and how screws can convert rotational motion to linear, while ...
$25.99
Usually ships in 1-2 days
 
Learn all about buildings and how they literally support our lives! Construct different types of bridges and find out how their architecture design provides massive weight support. Discover all the types of forces applied and how engineers manage ...
$25.99
Usually ships in 1-2 days
 
Learn all about the ingenious Sir Isaac Newtons laws of motion which are the basis of classical mechanics that still describe most everyday life situations. Observe the effects of kinetic and potential energy and see first-hand how energy is trans...
$28.99
Usually ships in 1-2 days
 
Learn all about the ingenious Sir Isaac Newtons laws of motion which are the basis of classical mechanics that still describe most everyday life situations. Observe the effects of kinetic and potential energy and see first-hand how energy is trans...
$28.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$26.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$47.89
Usually ships in 1-2 days
 
This set is the combination set of the basic 8 sets of the mechanical science series. It covers all simple machines: the lever, the wedge, the wheel and axle, the screw, the inclined plane and the pulley, as well as two more mechanisms, the gear a...
 (1)
$78.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$26.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$47.89
Usually ships in 1-2 days
 
This set is the combination set of the basic 8 sets of the mechanical science series. It covers all simple machines: the lever, the wedge, the wheel and axle, the screw, the inclined plane and the pulley, as well as two more mechanisms, the gear a...
 (1)
$78.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$26.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$47.89
Usually ships in 1-2 days
 
This set is the combination set of the basic 8 sets of the mechanical science series. It covers all simple machines: the lever, the wedge, the wheel and axle, the screw, the inclined plane and the pulley, as well as two more mechanisms, the gear a...
 (1)
$78.99
Usually ships in 1-2 days
 
Learn how Gears can easily reduce or increase speed, change force. or transfer motion from one position to another. Discover how Worm Drives are used to greatly reduce rotational speed and how screws can convert rotational motion to linear, while ...
$25.99
Usually ships in 1-2 days
 
Learn all about buildings and how they literally support our lives! Construct different types of bridges and find out how their architecture design provides massive weight support. Discover all the types of forces applied and how engineers manage ...
$25.99
Usually ships in 1-2 days
 
Learn all about the ingenious Sir Isaac Newtons laws of motion which are the basis of classical mechanics that still describe most everyday life situations. Observe the effects of kinetic and potential energy and see first-hand how energy is trans...
$28.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$26.99
Usually ships in 1-2 days
 
The inventor basic series has been developed for maximizing creativity and imagination. In each set many different models can be created from a wide range of themes, from structures to cars, planes and cranes! The bigger sets also include the 3V g...
$47.89
Usually ships in 1-2 days
 
This set is the combination set of the basic 8 sets of the mechanical science series. It covers all simple machines: the lever, the wedge, the wheel and axle, the screw, the inclined plane and the pulley, as well as two more mechanisms, the gear a...
 (1)
$78.99
Usually ships in 1-2 days
 
Pleasure wheels whose passengers ride in chairs turned by strong men seem to have been around already from the 17th century! The original Ferris wheel was designed and constructed in 1893 by G.W. Gale Ferris, Jr. in Chicago, and since then all suc...
$114.99
Usually ships in 1-2 days
 
The London Eye is a giant 135 meters tall Ferris wheel and it is the tallest one in Europe. It is situated on the banks of the river Thames in the British capital. One of its most distinctive features is its triangular rim and its capsules, each o...
$109.99
Usually ships in 1-2 days
 
Pleasure wheels whose passengers ride in chairs turned by strong men seem to have been around already from the 17th century! The original Ferris wheel was designed and constructed in 1893 by G.W. Gale Ferris, Jr. in Chicago, and since then all suc...
$114.99
Usually ships in 1-2 days
 
The London Eye is a giant 135 meters tall Ferris wheel and it is the tallest one in Europe. It is situated on the banks of the river Thames in the British capital. One of its most distinctive features is its triangular rim and its capsules, each o...
$109.99
Usually ships in 1-2 days
 
The Robotic Arm Edge, a Dr. Toy 2008 Best pick, gets a much-anticipated accessory with the introduction of the USB Interface Kit. Now robot lovers can connect the Robotic Arm Edge to a PC and have real time manual control of the robotic arm and pr...
$31.99
Usually ships in 1-2 days
 
Pleasure wheels whose passengers ride in chairs turned by strong men seem to have been around already from the 17th century! The original Ferris wheel was designed and constructed in 1893 by G.W. Gale Ferris, Jr. in Chicago, and since then all suc...
$114.99
Usually ships in 1-2 days
 
The London Eye is a giant 135 meters tall Ferris wheel and it is the tallest one in Europe. It is situated on the banks of the river Thames in the British capital. One of its most distinctive features is its triangular rim and its capsules, each o...
$109.99
Usually ships in 1-2 days
 
The Robotic Arm Edge, a Dr. Toy 2008 Best pick, gets a much-anticipated accessory with the introduction of the USB Interface Kit. Now robot lovers can connect the Robotic Arm Edge to a PC and have real time manual control of the robotic arm and pr...
$31.99
Usually ships in 1-2 days
 
The Robotic Arm Edge, a Dr. Toy 2008 Best pick, gets a much-anticipated accessory with the introduction of the USB Interface Kit. Now robot lovers can connect the Robotic Arm Edge to a PC and have real time manual control of the robotic arm and pr...
$31.99
Usually ships in 1-2 days
 
Change, most people find it difficult because of their set routines and mundane ways. Thankfully, children are our future and they are more amenable to change. Give them the opportunity to learn and experience alternative sources of energy to help...
$14.89
Usually ships in 1-2 days
 
Intro to Engineering welcomes young children to the field of engineering with 21 experiments and building projects in five sections. By engaging in hands-on activities, children will learn how engineers apply their scientific and technical knowled...
 (1)
$29.99
Usually ships in 1-2 days
 
Read the amusing story of two inquisitive kids and build simple models of the aircraft they discover on their hilarious family vacation. Along this roundabout trip, the kids build various flying machines to help the people they encounter solve pro...
$34.99
Usually ships in 1-2 days
 
Change, most people find it difficult because of their set routines and mundane ways. Thankfully, children are our future and they are more amenable to change. Give them the opportunity to learn and experience alternative sources of energy to help...
$14.89
Usually ships in 1-2 days
 
Intro to Engineering welcomes young children to the field of engineering with 21 experiments and building projects in five sections. By engaging in hands-on activities, children will learn how engineers apply their scientific and technical knowled...
 (1)
$29.99
Usually ships in 1-2 days
 
Read the amusing story of two inquisitive kids and build simple models of the aircraft they discover on their hilarious family vacation. Along this roundabout trip, the kids build various flying machines to help the people they encounter solve pro...
$34.99
Usually ships in 1-2 days
 
Change, most people find it difficult because of their set routines and mundane ways. Thankfully, children are our future and they are more amenable to change. Give them the opportunity to learn and experience alternative sources of energy to help...
$14.89
Usually ships in 1-2 days
 
Intro to Engineering welcomes young children to the field of engineering with 21 experiments and building projects in five sections. By engaging in hands-on activities, children will learn how engineers apply their scientific and technical knowled...
 (1)
$29.99
Usually ships in 1-2 days
 
Read the amusing story of two inquisitive kids and build simple models of the aircraft they discover on their hilarious family vacation. Along this roundabout trip, the kids build various flying machines to help the people they encounter solve pro...
$34.99
Usually ships in 1-2 days
 
Pleasure wheels whose passengers ride in chairs turned by strong men seem to have been around already from the 17th century! The original Ferris wheel was designed and constructed in 1893 by G.W. Gale Ferris, Jr. in Chicago, and since then all suc...
$114.99
Usually ships in 1-2 days
 
The London Eye is a giant 135 meters tall Ferris wheel and it is the tallest one in Europe. It is situated on the banks of the river Thames in the British capital. One of its most distinctive features is its triangular rim and its capsules, each o...
$109.99
Usually ships in 1-2 days
 
The Robotic Arm Edge, a Dr. Toy 2008 Best pick, gets a much-anticipated accessory with the introduction of the USB Interface Kit. Now robot lovers can connect the Robotic Arm Edge to a PC and have real time manual control of the robotic arm and pr...
$31.99
Usually ships in 1-2 days
 
Change, most people find it difficult because of their set routines and mundane ways. Thankfully, children are our future and they are more amenable to change. Give them the opportunity to learn and experience alternative sources of energy to help...
$14.89
Usually ships in 1-2 days
 
Intro to Engineering welcomes young children to the field of engineering with 21 experiments and building projects in five sections. By engaging in hands-on activities, children will learn how engineers apply their scientific and technical knowled...
 (1)
$29.99
Usually ships in 1-2 days
 
Read the amusing story of two inquisitive kids and build simple models of the aircraft they discover on their hilarious family vacation. Along this roundabout trip, the kids build various flying machines to help the people they encounter solve pro...
$34.99
Usually ships in 1-2 days
 
This safe, entry-level kit teaches how generators work, by allowing you to control an electric motor using battery power. Control the motor's forward or reverse rotation- with fun, rotating colour disc. Features no soldering required each in ...
$23.99
Usually ships in 1-2 days
 
This safe, entry-level kit teaches how generators work, by allowing you to control an electric motor using battery power. Control the motor's forward or reverse rotation- with fun, rotating colour disc. Features no soldering required each in ...
$23.99
Usually ships in 1-2 days
 
This safe, entry-level kit teaches how generators work, by allowing you to control an electric motor using battery power. Control the motor's forward or reverse rotation- with fun, rotating colour disc. Features no soldering required each in ...
$23.99
Usually ships in 1-2 days
 
This safe, entry-level kit teaches how generators work, by allowing you to control an electric motor using battery power. Control the motor's forward or reverse rotation- with fun, rotating colour disc. Features no soldering required each in ...
$23.99
Usually ships in 1-2 days