Enjoy hours of fun and learning with the 4M Insectoid Robot Science Kit. Construct this easy-to-build Insectoid and discover the mechanisms behind robotic movement. Impress friends and family with the completed robot that crawls, wriggles and walks. With screws, connectors, caps and a motor, assemble this set with a cross-head screwdriver, sold separately. Power the robot with one AAA battery, also sold separately.