Premium Alminium Oxide: Durable aluminum oxide grain ensures faster cutting, long lasting and anti-static, Non-stick Coating - special anti-clogging stearate coating increases performance and durability. Durable: We use the right material, the triangle sander sandpaper is designed with a thick paper base, made of high quality aluminum oxide with abrasion-resistant sand, high strength resin bond system increases service life Change Facliment: Durable backing makes changing sanding sheets easier, more convenient and faster Different Grit Sanding Triangles: This wood sandpaper includes 40/60/80/120/180/240 grits. Can meet all polishing needs Function: Suitable for grinding and polishing metal, non-metal, wood, rubber, leather, plastics, stone, glass and other materials. Very practical and effective Product Description Zirconia Aluminum Oxide Sandpaper Features The self-adhesive sandpaper backing with hook and loop allows for quick and easy removal and replacement. A special soap coating