Complete Types: Include 100 pcs sanding disc of different grits: 60# 80# 120# 150# 220#, 20pcs 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 duration of life Easy to Change: Durable reverse velcro makes sanding disc change more easy and convenient; Hook and loop support for faster assembly 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 as you need Package Contents: 1 x Sanding Disc 100pcs (60/80/120/150/220 Grit, 20pcs of each type) Sandpaper material Sandpaper is made from alumina granules. It is durable and anti-static and provides long-lasting and efficient sanding. Meets most polishing requirements With 5 kinds of grits - 60/80/120/150/220 grits, from coarse to fine,