Usage Tips:[2Pcs 24V 555 40000RPM Motor]Kids ride on car 2Pcs 24V 555 40000RPM drive motor gearbox 555 drive engine is made of high strength plastic board combined with high quality motor [24V 555 Motor Gearbox]24V555 40000RPM High Speed drive motor gearbox ,Voltage: DC 24V; Speed: 40000RPM ;Shaft Hole Diameter: 12mm (0.47inch); Motor Diameter: 35mm(1.38inch) [Check Your Motor Model Number] Item is easy to replace and is for kids ride on cars. You can learn the Model Number from the motor ( for 24v Motor Gearbox ) [Modification Customized]Specially customized for car modification ( High Speed ) 24v Motor Gearbox is widely used in the majority of kids Ride On Car [Easy to Use]Quick-change wire connectors that require no soldering to install and allow fast install/removal of gearcases!Please check if your car is working properly. (Whether the battery is damaged, the battery cable is connected.) Colour:Black Material:plastic+metal Package Contents: 2 x Motor Only the above package content, other products are not included. Note: Light reflection 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.