Norton Corner Sanding Sponge features a super-sharp abrasive combined with a new coating method that resists clogging, allowing it to cut faster and last longer than typical sanding sponges. It up to five times the durability of conventional sandpaper. Designed with various sizes and grit combinations, this sanding sponge provides maximum versatility and flexibility, making it i for sanding curved, contoured, or flat surfaces on wood, metal, paint, plastic, and drywall.