Description: Crawler width: 41mm Tracks: Plastic Reduction ratio: 1:59 Weight: 2.3KG Working voltage: 6~12V Motor: Torque: 8kg/mg Speed: 100rpm Working rating power: 5-20W Maximum current: 1-8A Using the Shock Absorber and Rolling Bearing Wheels for better runing Working Load: More than 5kg Apply For: Robot project; Competition; Graduation design; The engineering prototype; DIY creations Package Included: 1x Tank Intelligent Robot Chassis Assembled with robot arm: