Our black car wheel hub scratch repair pen contains polyurethane resin, solvent paint, and aluminum silicate. It can easily repair scratches and small dents on the wheel hubs. Its unique anti-rust and waterproof formula effectively protects the surfaces of metal, aluminum, and steel rims. The usage method is simple: 1. Clean the scratched area; 2. Before use, shake the repair pen to mix it evenly; 3. Apply the repair liquid to the scratched area; 4. After using the repair liquid, let it dry naturally. The detailed repair effect ensures a smooth surface and maintains the overall appearance of the vehicle.