THAMES & KOSMOS WINDBOTS 6 N 1

Build six awesome robots — all that move without any batteries or
electrical power. The secret behind these fascinating machines is one of
the oldest power sources in the world: wind! A full color manual guides
you to assemble six models one at a time from over 200 pieces. Build a
big wheel tricycle, quadruped, soaring machine, drilling monster, walking
robot, and even a wind-powered yacht. To make them go, assemble your
own hand-powered wind generator. As you go, you will learn about how
gears transmit power and torque. Also learn about wind as a powergenerating technology, past, present and future. Easy, snap-together
assembly requires no glue. The kit includes step-by-step illustrated
instructions