Smart 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 triangle sander is equipped with a thick paper base, made of high-quality alumina and wear-resistant sand. Heavy-duty resin bonding system extends service 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 use. Packing: 25 pieces per box, 40/60/80/120/180 Varied 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 quality inspection. Our sandpaper is resistant to wear and high temperatures. Sanding sheets are made from abrasive, durable, anti-static aluminum oxide. The grain is coarser, the polished effect is finer. Our sandpaper production is strictly controlled. The matte texture is uniform and the sandpaper can be bent freely without sand dripping. The flocking sandpaper is firmly attached, and the grinding position can be adjusted as desired during the grinding process. Wide range of uses, assorted grit combinations can meet all your polishing needs - Hook and loop backing makes attachment easy and convenient.Triangular sanding pads are perfect for wood sanding, meeting the needs Versatile sanding tool on hardwoods such as oak and yellow pine, or building boards such as plywood. - Apply to metal and non-metal, wood, rubber, leather, plastic, stone, glass and other materials grinding, polishing, etc. - Assorted grit sanding pads to suit all types of jobs, and a wide selection of sandpaper, carbide rasps and polishing pads for working on many materials. - 40# 60# 80# 120# 180# grits, totaling 25/50 sheets. Coarse to fine, covered all grain grades. Specifications: Material: Aluminum Oxide Abrasive Color: Reddish Brown Back Technique: Hook & Loop Number of Holes8 Holes Size: 7.28" x 3.66" (185mm x 93mm) Quality: 40/60/ 80/120/180 Quantity: 25/50PCS sanding sheets