All metal construct TS400 tank classis very strong and beautiful. With independent shock absorbing system makes the chassis run smoothly even on uneven road surfaces; Equipped with 4 high-torque motors, the chassis can move omnidirectional, forward and backward, left and right, and turn around; The chassis panel provides ample space for mounting robots and control kits, and has a large development space.   Features: All Metal Construction - The smart robot tank adopt high strength aluminum alloy material, which can provide durable and solid shell, it is great for rough condition running.  Damping Effect - With independent shock absorbing system makes the chassis run smoothly even on uneven road surfaces.  4pc 9V Motor - 4 high-torque motors is equipped with a speed feedback circuit and Hall speed, offers higher power and speed.  Omnidirectional Move - This smart robot tank can go forward, go backward, turn left, turn right, turn around, flexible go everywhere.  Strong Compatibility - The smart robot tank compatible with most popular controllers in the market such as Arduino, Raspberry Pi and so on.   Specification: Material: aluminum alloy+metal+engineering plastic;  Color: black;  Item Size: 37.5*24*10.5cm/14.8*9.4*4.1in;  Item Weight: 1430g/3.2lb;   Packing List: 1 * Set of Board;  1 * Motor;  4 * Demping Drive Wheels;  8 * Non-shock Bearing Wheels;  2 * Demping Tracks (detacheable);  1 * Set of Screw;  1 * 18650 Battery Box( battery not include);  1 * Hex Wrench