This two-pack of feature-rich 12V 550 40000RPM motors is designed to upgrade the power and speed of your child's ride-on car. Made from a heavy-duty plastic plate fused with a high-quality motor, this ride-on car gearbox ensures robustness, peak performance, and an extended lifespan, truly promising exceptional value for your investment. The impressive high-speed 12V550 40000RPM drive motor gearbox boasts impressive features such as a DC voltage of 12V, a high speed of 40000RPM, a highly compatible 12mm shaft hole diameter, and a compact motor diameter of 35mm. This potent combination guarantees unparalleled performance and a smooth ride for your child. Experience simplicity in installation and replacement. This gearbox is not only made for high performance but also for ease of use. Model numbers are available for easy identification and gadget compatibility. Perfect for use in ride-on children's toys, especially those using a 12V motor gearbox. Enjoy advanced customization for car modifications. With its high-speed capability, this 12v motor gearbox easily adapts to most children's ride-on cars, providing a seamless upgrade for an exciting and smooth ride that your little ones will enjoy. Installation is a breeze with quick-change cable connectors that require no soldering. Quick installation or removal of gearboxes is guaranteed. Also, carefully check the car's battery to ensure it is functioning correctly. Confirm that the battery is not damaged and that the battery cable is properly connected for optimal operation. Color: black Material: plastic+metal Note: There is a slight color difference or difference between the actual product and it does not affect the use. Package Contents: 2 pcs Kids Ride on Car Gearbox 550 12V 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.