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Explore mechanical energy and build robots.
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Double Pulley

Two parallel plastic wheels, 50mm diameter.

Mousetrap Car Kit

Build a car powered by a mousetrap spring.

Robot Duck

Build a robot duck

Soda Can Robug

Build a robot from a soda can.

Tandem Pulleys

Tandem pulleys with a durable hook at each end.

Tin Can Robot

Build a walking robot out of a metal can!

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