Description: Metal Idler Wheel Bearing Accessory Material: Metal Suitable for 1/16 1:16 Heng Long 3818-1 RC Truck Replacement parts for remote control tank model Make your rc tiger tank hobby run like a new one Size Chart: Approx. 4.2x4.7cm/ 1.65x1.85inch Package Includes: 2 Pieces Metal Idler Wheels Note: Due to the difference between different monitors, the picture may not reflect the actual color of the item Due to manual measurement, there may be 1-2mm error in size