Quality EVA Foam: Our soft EVA foam closely adheres to edges, minimizing burnthrough and skipping. This quality construction helps achieve a finish without damaging the surface, making it ideal for precision sanding tasks. Versatile Hook Loop System: Dualsided design with a hook face for easy sanding disc attachment and a loop face for secure pad placement. Quick and easy replacements. This versatility ensures compatibility with a wide range of sanding discs, enhancing your sanding efficiency. Enhanced Flexibility: This hook and loop backing pad bridges the gap between your sandpaper and orbital sander, delivering results. It is for sanding contoured and curved surfaces on cars, boats, and furniture, ensuring smooth operation and reduced vibration. Durability: Constructed with waterproof adhesive hook that firmly holds the foam and sanding disc together, these 5 inch interface pads are built to last. They are designed for both wet and dry sanding, providing a reliable solution that won't come apart under pressure. Use scenarios: Automotive bodywork and refinishing: sand curved panels and complex profiles without damaging edges. Marine and furniture finishing: tackle hull curves, decks, and curved furniture components with controlled dust and smooth results. General sanding with an orbital sander: rapid disc changes and reliable performance for wood, plastic, and metal surfaces in wet or dry applications.