Item Type: Motor Gearbox_x000D_Material: ABS, Alloy, Red Copper_x000D_Application: Motor gearbox for children's car_x000D_Working Voltage: 12V_x000D_Hole Diameter: Approx.12mm / 0.47in_x000D_Total Size: Approx. 185x92mm / 7.28x3.62in(L x W)_x000D_Installation Hole Distance: Approx. 70mm / 2.76in_x000D_Motor Diameter: Approx. 36mm / 1.42in_x000D_Key Slot Diameter: Approx. 58mm / 2.28in 1Easy installation, strong replaceability. It will make quite low noise and more wear?resistant. 2This is a great electric motor gearbox used for children's car. 3Metal gear, and the motor is thickened copper wire, which has strong strength and fast speed. 4It will be a great replacement part for your broken or old ones. 5The working voltage is 12V, which is safe to use and meets your needs. 1 x Motor Gearbox