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 quickly. Strong 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 heat-resistant sand. ‘wear. Heavy-duty resin bonding system extends life. Triangular Mouse Design: Helps reach tight corners for efficient material removal, suitable for Dewalt, Bosch, Black + Decker.< /p> 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, air tools, grinders, easy to operate. Packing: 25 pieces per box, 40/60/80/120/180 Classification various grit sander sheets can meet your all polishing requirements, one piece size 7.28" x 3.66" (185mm x 93mm)