TOTAL 50PCS: 10pcs each of 60/80/120/240/320 grit sanding disc 180mm sandpaper pads, 5 sets of most common sandpaper from rough to fine to satisfy your general polishing needs High-quality Alumina Discs Pads: Made of alumina abrasive with composite coating, prevent dust clogging and not easy to drop sand; While using latex paper backing, the sandpaper is not easy to curl, more wear-resistant and efficient Strongly Absorbent Hook and Loop Backing: High quality flocking with strong adhesive force, not easy to loosen or fall off even at high-speed operation SUITABLE FOR: 180mm diameter drywall sanding discs, Suitable for long pole sander, drywall sander, telescopic sander, drywall sanders, wall sanders, sanding giraffe, flexible giraffe sander, ceiling sander and sanding giraffes with 180mm large sanding disc Wide Application: wall, stone, concrete, wood, plastic, glass and other materials sanding, polishing, paint stripping, deburring and so on