High-Quality Construction: This 2-piece set includes a 12V RS390 16000RPM drive unit, made of robust plastic and equipped with a motor, ensuring long-lasting performance and reliability in children's electric vehicles. Verify Compatibility: Seamlessly integrate with your child's electric car by verifying the compatibility of the gearbox's plug connector. A perfect match is crucial for optimal performance. Specific Design for Electric Vehicles: Tailor-made specifically for children's electric cars and motorcycles, this replacement gearbox and motor set must be identical in appearance to the old parts to ensure a proper fit and function. Easy Installation: Equipped with quick-connect connectors, this gearbox allows for easy installation without soldering. It's designed for quick removal and replacement, making maintenance simple. Operational Verification: Before installation, please check the operational status of your child's electric vehicle. Confirm that the battery is in good condition and that all connections, including the battery cable, are secure and intact. Note: The physical difference in color or difference does not affect the use, please don't mind it, thank you! Color: Black Material: plastic+metal Package Contents: 2 * Gearbox with DC 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.