WindBots: 6-in-1 Wind Powered Machine Kit

Build six awesome bots that move without any batteries or electricity. The secret behind these fascinating machines is one of the oldest power sources in the world: wind! A full-color manual guides you in assembling six models one at a time from over 130 pieces.

 Build a big-wheel tricycle, quadruped, soaring machine, drilling monster, walking robot, and even a wind-powered yacht

• Step-by-step, illustrated instructions
• 6-in-1 engineering kit: build six wind-powered models and a handheld wind generator. Start cranking the generator and watch them go!
• Learn about gear ratios and wind-power technology
• No batteries or electricity required
• Recommended for ages: 8+