12V 390 16000RPM Drive Engine for Kids Ride On Car ( six plum blossoms ) This is a great electric motor gearbox used for children's cars.The middle gear is made of metal which is more sturdy and durable.It will make quite low noise and more wear-resistant.It will be a great replacement part for your broken or old ones. The voltage is 12V and the speed is 16000RPM. Name: Electric Motor Gearbox Total length: Approx 16.5cm / 6.5 inch Hole Diameter: 1cm / 0.39 inch Torque: Motor Gearbox Colour: black Material: plastic Package Contents:1 * Electric Motor Gearbox Only the above package content, other products are not included. How to distinguish the motor model: 1. Generally, the model will be written on the motor, such as "6V390 will write RS390-6VDC". 2. If the writing is worn, you can judge the model by the following data: 390 The length of the motor is 4.6cm, the diameter 2.75cm, gear box length 16.5cm, aperture 1cm