Multi-function: To prevent car paint scratching from trunk bike rack hook/roof luggage fixing metal fitting/RV binding luggage belt buckle/car external ratchet/various bungee rope or strap metal fittings.Professional: This car anti-scratch protector is specially tailored to fit various trunk bicycle racks.The car anti-scratch protector provides a simple solution that can protect your vehicle from potential scratches and damage.High-quality material: Made of high-quality nylon panel and nylon flannel, it is scratch-resistant and durable. The surface of the protector has a hook & loop structure makes it easy to be attached. It's a great method to avoid car scratches from the metal parts.Easy installation: Use the hook & loop of the product panel to easily install the port with metal buckle or ratchet on the protector. The protector perfectly separates the metal fittings from the car surface to protect your car paint.Installation method and precautions: 1. Place the strapping port on a white surface (if the metal hook or ratchet is too large, please paste multiple protectors to increase the protection area). 2. After placing the strap in the middle, fold the smaller area along the incision position. The two ends of the fold can be glued to each other. Be sure to fix the strap tightly in the middle position (perfect fit for 1 inch wide strap) 3. Install the black flannel side toward the surface of the car. 4. If it is installed on the metal hook of the strap, the protector should be fixed inside of the hook, or the protector should be placed in the position that needs protection and then the hook should be hung on the protector. 5.Note: When installing, pay special attention to whether the gap in the rear of the car is wide enough. If the gap is too small, it is not suitable to install this protector.