ITEM NAME:2 Pcs 550 Universal Children Electric Car Gearbox with Motor 12V 23000Rpm M J2F4 2 Pcs 550 Universal Children Electric Car Gearbox with Motor 12V 23000Rpm M J2F4 Use:Vehicles & Remote Control Toys RC Parts & Accs:Motors Rotating speed: 23000rpm Technical parameters:Value 10 Remote Control Peripherals/Devices:Motor Four-wheel Drive Attributes:Assemblage Model Number:RS550 Upgrade Parts/Accessories:Hydraulic Transmission Box Wheelbase:Screws For Vehicle Type:Cars Tool Supplies:Assembly Category Only the above package content, other products are not included. Note: Light shooting 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. Colour:black Material:plastic Size:Length: 18.5cm Aperture: 1.2cm Package Contents: 2* motor gearbox (with motor cable)