General description Pack of two feature-rich 12V 550 40000RPM motors designed to enhance power and speed in your child's ride-on toy car. Made from heavy-duty plastic board combined with a high-quality motor, this ride-on car ensures robustness, top-tier performance, and an extended lifespan, providing exceptional value for your investment. Technical specifications Voltage: 12V DC Speed: 40000 RPM Shaft hole diameter: 12mm Motor diameter: 35mm Color: Black Material: Plastic and metal Measurement allowed error: +/- 1-3cm Installation Easy installation and replacement with quick-change wire connectors requiring no soldering. Rapid install or removal of gearcases. Ensure to check your car's battery for proper functioning. Confirm that the battery isn't damaged and that the battery cable is securely connected for optimum operation. Usage This motor is designed for high performance and is compatible with a majority of children's ride-on cars, providing a seamless upgrade for a thrilling