①. [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 motor. ②. [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). ③. [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). ④. [Modification Customized] Specially customized for car modification (High Speed) 24v Motor Gearbox is widely used in the majority of kids Ride On Car. ⑤. [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.) ⑥. Colour: Black. ⑦. Material: plastic+metal. ⑧. Package Contents: 2 x Motor. ⑨. Only the above package content, other products are not included. ⑩. 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.