Build and power a robot that requires no batteries! This Green Science kit is a fun and hands-on experiment that helps you discover the possibilities of alternate energy resources. With just a drop of salt water your robot will roll along the floor!
Includes: 2 complete charcoal battery kits (each kit can power the robot for approximately 60 minutes of play time), required materials and detailed instructions.
Robot measures approximately 3" high x 2.25" wide x 2" long. (when assembled).
Express delivery and return policies
Free shipping on orders over $30
Processing time: 1-2 Days
Shipping time: 3-5 Days(According to the logistics method and delivery address)
Items can be returned or exchanged within 30 days !
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