About this item ✔2023 New: Product Specifications are 80 Grit Sanding discs, 25 PCS per box. 4-1/2" Diameter with 7/8" Arbor hole in the center of disc to attach to sander.Compatible with an angle grinder and should only be used with a backing pad and nut. ✔Premium Durable Material: Top-quality aluminum oxide grain increase durability and sharpness, providing efficient and long-lasting sanding. the number of grains means the degree of roughness, which affect the polishing effect. Available in 36 Grit, 60 Grit, 80 Grit, and 120 Grit, so you can easily choose the suitable specification according to different needs. ✔Reliable Workmanship: With steel paper as the base material, full resin consolidated improves the wear resistance and softness of sandpaper, making sandpaper with feature of high tear resistance, not easily breakable, and more durable. Note: If the sanding disc is flexural, please directly adjust by hands. ✔Widely Applications: Widely used in the grinding and polishing of metal, wood, rubber, leather, plastic, stone, glass, and other materials. Act on of auto wood grinding, wall sanding, metalworking metal sanding, automotive metal polishing, woodworking wood making, and furniture finishing. ✔Trusted Brand Floriagra aims to provide considerate customer service. Any problems feel free to contact us. We cherish every chance to make progress.