Tamiya Mechanical Kangaroo 71102 With the Tamiya Mechanical Kangaroo we have entered the age of robotics. This amazing Kangaroo- robot jumps by moving its rear legs simultaneously to go forward. When walking slowly, it uses, its front legs & when running quickly, it uses its tail for balance. The transparent -colored legs & body give the Kangaroo a funky look. The reverse switch is also transparent, giving you a peek at the Kangaroo's internal mechanisms. A gearbox transforms the motor movement to make the Kangaroo's rear legs move. You can choose between two different gears. Altering tail position makes the Kangaroo change direction changing the position of the tail allows the Kangaroo to keep balance during high-speed running & it enables it to change direction. Putting the tail straight will make the Kangaroo go straight but setting it to the right/left will make the Kangaroo turn to the right/left. Run the Kangaroo on flat smooth surfaces, avoid slopes, bumpy roads & longhaired carpet. All you need is included to assemble. Total Length 180mm Total Weight 95g (w / out batteries) Requires one R6/AA/UM3 battery (not included)