Quality Carbon Fiber and Copper Car Door Lock Knobs Durable Construction: Made from carbon fiber and copper, these door lock knobs are built to last. They resist corrosion, fading, deformation, and breakage, ensuring longterm reliability. The smooth, lightweight design provides a refined finish that enhances both function and appearance. Easy Installation: Package includes 4 car door lock covers. No tools are required. Simply remove your existing door lifter and it with these upgraded pins. The quick installation process saves time and effort. Universal Fit: Each door lock pin measures 1.37 x 0.31 inches, making them compatible with most cars, trucks, SUVs, and pickup trucks. Please measure your vehicle's existing pins before ordering to ensure proper fit and performance. Functional and Stylish: In addition to their role as functional locking mechanisms, these knobs offer a distinctive and modern touch to your car interior. Their sleek design blends seamlessly with a wide range of cabin styles for a cohesive, elegant appearance. Practical Use Scenarios: 1. worn or faded factory lock knobs to restore original functionality and maintain a polished look. 2. Upgrade interior style for , matching other carbon fiber accents in the vehicle. 3. Protect against corrosion in humidity or coastal environments, ensuring reliable operation over time. These carbon fiber and copper door lock knobs combine durability, simple installation, universal compatibility, and style, providing a smart upgrade for any vehicle interior.