This is an assembly kit of the 2 legged robot that moves by creating electricity buy winding up the hand generator. The motor is run by electricity but without the need for batteries since all power is created by the supplied hand crank. 2 legged walking mechanism has fall prevention legs and allows stable walking. Included are 2 heads Ostrich and duck for your preference. Connection between generator unit and walking mechanism is ensured by wire harness with connector. Assembly is easy with snapon and screw in. Generator unit has gear (gear ration of 38.2:1) and if winded faster it will walk faster. Approximately 2.5V (no loading) generation is possible. Connection between generator unit and walking mechanism is ensured by wire harness with connector. Assembly is easy with snapon and screw in. We prepared 2 heads ostrich and duck for your preference. ostrich's head will comically move by vibration of walking. Dock's head will move left and right when walking. Because walking speed will be changed by turning generator it will be fun to race.