Clever design: 8 holes on the sandpaper can collect dust most effectively, help keep the work surface clean, and the hook-and-loop sandpaper holder can help you change the paper easily and rapidly. Solid and durable: use the right material, the sandpaper used in the triangular sander is equipped with a thick paper base, made of high quality alumina and wear-resistant sand. Heavy-duty resin bonding system extends life. Triangle Mouse Design: Helps reach tight corners for efficient material removal, suitable for Dewalt, Bosch, Black + Decker. Wide range of applications: Suitable for grinding and polishing metal, non-metal, wood, rubber, leather, plastic, stone, glass and other materials, suitable for various power tools , pneumatic tools, grinders, easy to operate. Packing: 25 pieces per box, 40/60/80/120/180 Various grit sander sheet classification can meet all polishing requirements, single piece size 7.28’ x 3, 66" (185mm x 93mm) Q: Why choose our sandpaper? A: Real materials, strict