RS390 motor is suitable for the minority of kids powered on car The motor is installed in the The gear of motor has 12 teeth Be careful the Voltage and RPM Use: Kids Powered on Car Voltage: 6V Rotate Speed: 18000 RPM colour:Silver Material:metal Package Contents: 1 * Motor 1 * 12 teeth gear Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.