WindBots 6-in-1 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+ Experiments: 6 Piece Count: 133 Manual Pages: 52