Three toys in one!! Build your own eco-solar racer powered by a solar panel. Then transform that racer into 2 other fun toys -- a salt water racer and a salt water robot. 100% battery-free eco learning fun! 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 and breeze. Simply snap all key components and modules together to start and pull apart once finished. Encourages 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!

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