With Greenex: Robotic Run Science Kit Keep your car running using the power of the sun or even your own movement. This rear wheel drive car can be set up to run using solar power or if there's no light use the hand generator and have control over the backwards and forwards motion from the crank dynamo. With 34 pieces this is a fun assembly kit, each piece snaps into the others with no need for glue.
The Greenex Series is 100% battery-free eco learning fun that connects the environment to amazing science experiments. Smartly designed, each Greenex kit allows kids to snap the pieces together with ease. Simply snap all key components and modules together to start and then pull apart once finished.
These kits encourage kids to experiment on their own for additional learning. Best of all, each kit can snap to another to integrate functions and double (triple, quadruple) the fun!