Features 1、Applicable Models: RC center differential gear set is suitable for ZD Racing 1/7 MX 07 RC cars, please confirm the RC car model before use. 2、Decelerating Effect: Effectively improve the performance of your car, which can reduce the speed, increase the torsion of the engine, and make the remote control car run smoothly. 3、Changing Speed: Designed for more effective deceleration power, it can be used to change the speed to provide more stable driving, lower speed and higher torsion. 4、Precise Shape: Accurate shape and size manufacturing can provide balanced driving and maximize the deceleration performance of remote control vehicles. 5、Simple Installation: It is convenient to install and disassemble, and the original plastic parts or damaged parts can be replaced directly to obtain higher strength. 6、Aluminum Alloy and Steel: Made of premium aluminum alloy and steel, durable, wear resistant, high strength, and more refined appearance. Item Type: RC Center Differential Gear Set Material: Aluminum Alloy, Steel Gross Weight: 135g / 4.8oz Type: RC Accessories Color: Black Teeth Number: 56T Bearing Size: Approx.16 x 8 x 5mm / 0.6 x 0.3 x 0.2in Distance from Bearing to Bearing: Approx.34mm / 1.3in Product Size: Approx.68 x 57mm / 2.7 x 2.2in Applicable: for ZD Racing MX-07 4WD 1/7 RC car Package List 1 x Center Differential Gear Set 2 x Gasket