1、High Qulity Material: This metal reduction gear is made of high quality steel material, durable, wear resistant, high strength and more refined appearance. 2、Deceleration Effect: The steel deceleration big teeth of the reduction gear can play the role of deceleration and increase the torque of the engine. 3、Stable Performance: Owns a more efficient deceleration power, changing speed and provides a smoother ride, reducing revs and increasing torque. 4、Balanced Ride: Extremely fast modification part, accurately sized, provide a balanced ride and maximize the deceleration performance of the remote controll car. 5、Easy Operation: It is easy to install and disassemble, and the original plastic parts or damaged parts can be directly replaced to obtain higher strength. Item Type: RC Accessories Material: Steel Colour: Black Product size: 58x42mm / 2.28x1.65in Gross Weight: 69g / 2.43oz Application: For ZD Racing 7509 1/10 RC Off Road RC Car 1 x Steel Reduction Gear