Full Types: Include 100pcs different grit sanding disc: 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 fitted with a heavyweight D-grade paper base, made of high quality alumina with abrasion resistant sand, high strength resin bonding system increases lifespan. Easy Change - Durable reverse velcro makes sanding disc change more easy and convenient; Hook and loop support for faster assembly. Operation Applicable: 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 (40/80/120/180/320/400/600/800/1500/2000 Grit, 10pcs of each type). See more details.