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. To make them all go, the kit also includes the pieces to build a hand-powered wind generator. As you build and experiment, you will learn about how gears transmit power and torque. Also learn about wind as a power-generating technology — past, present, and future. Easy, snap-together assembly requires no glue 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 Player Information Age of Players: 8 to 16 YearsNumber of Players: 1 to 2Skill Level: BeginnerTime to Learn in Mins: 10Time to Play in Mins: 60 Small Piece Choking Hazard: Yes Battery Details:Batteries Included: Not RequiredBattery Details: 0 NAAdditional Batteries: 0 NAAdditional Information:Publisher: Thames and Kosmos Item ID: 814743016934 Packaging Dimensions: 11" X 7.25" x 4" Language: English Country of Origin: TW
