Complete Types: Include 100pcs sanding discs in different grits: 40/80/120/180/320/600/800/1000/1500/2000, 10pcs of each type. Almost all polishing requirements are met High Quality: Sanding disc is equipped with a thick D-class paper base, made of high-quality alumina with abrasion-resistant sand, high-strength resin bonding system increases the service life Easy to Change - Durable reverse makes changing sanding discs easier and more convenient; Hook and loop backing for faster mounting Applicable Operation: Suitable for grinding and polishing metal, non-metal, wood, rubber, leather, plastics, stone, glass and other materials. Very convenient and you can order according to your needs Package Contents: 1 x SPTA Sanding Disc 100pcs (40/80/120/180/320/600/800/1000/1500/2000 Grit, 10pcs of each type)