Pack of two 12V 550 40000RPM motors designed to enhance power and speed in children's ride-on toy cars. Constructed with durable plastic and high-quality motor components, this gearbox delivers reliable performance and extended durability, offering excellent value. High-speed 12V 550 40000RPM motor gearbox features 12V DC voltage, 40000RPM speed, 12mm shaft hole diameter, and 35mm motor diameter. This combination ensures strong performance and a smooth riding experience for kids. Designed for easy installation and replacement. Includes clear model identification for compatibility with various ride-on toys, especially those using a 12V motor gearbox. Suitable for car upgrades, this 12V motor gearbox is compatible with most children's ride-on cars, providing a seamless performance improvement for a more enjoyable ride. Equipped with quick-connect wire connectors for tool-free installation or removal. No soldering required. Always inspect the vehicle's battery before use to ensure proper operation. Confirm the battery is undamaged and connections are secure. Color: Black Material: Plastic + Metal Note: Slight color variations may occur due to lighting and display differences. This does not affect product functionality. Package Contents: 2 Pcs Kids Ride-On Car Gearbox 550 12V Motor Only the items listed above are included; other accessories are not. Note: Lighting and screen settings may cause minor color differences between the image and the actual product. Measurement tolerance: +/- 1-3 cm.