Vevor Sanding Discs 5" 150-Pc Hook-and-Loop 8-Hole Set NewThis 150 piece sanding disc set is designed for orbital sanders and includes 10 grit options from 60 to 600 for sanding and polishing tasks. Made with aluminum oxide abrasive and a hook and loop backing, the discs are built for durability and quick changes. The 8 hole design helps reduce dust buildup during use. These discs are suitable for working on metal, wood, rubber, leather, glass, jade, and similar materials.