【8 Grits Available】- 8 different grits sandpaper assortment from rough to fine: 40/ 60/ 80/ 100/ 120/ 150/ 180/ 220/ grits. ALL discs are 225mm 【High Quality】- made with white aluminium oxide abrasive for effective material removal. 【Perfect Size】- Designed for use with all leading brands of rotary drywall power sanders 【Easy to use】- Lightweight and flexible backing paper. Perforated for excellent dust extraction., Manufacturer: Just The Job Supplies