Here's an educational and fun model of a two-legged ostrich robot that's powered by a hand-cranked power generator! Electricity is generated by cranking the handle, which operates a gear-increasing generator system. Turn the handle clockwise to go forward, and counter-clockwise to move backward. The cranking speed directly affects the speed of the robot's movement! The big legs let the ostrich move forward and backward with stability, and the head is connected to the legs and mounted on a coil spring to produce hilariously comical action! Generates about 2.5V (unloaded). Includes two motors. Assembly is required; a screwdriver is included.