1. 70 Pieces Multi-grit 9 Inch Sanding Disc Set: Our 9 inch 8 hole sanding discs assorted set provides you with the multi-grit sandpaper you need. You will get 70 total sanding discs of 6 different grades, 10 pieces of 60 grit, 120 grit, 150 grit,180 grit 15 pieces of 80 grit, 240 grit. The higher the number, the finer the grit. Great value meets all your needs. 2. Heavy Duty and Thick Material: Our 9 inch sanding disc is made of high-quality alumina particles and a high-quality resin binder, durable, strong antistatic, and improve work efficiency. Easy to use and last for a long time of sanding. 3. Premium 9 Inch Sanding Disc Hook and Loop: Hook-and-loop backing, easy to stick to the drywall sander, will not fall during use, can quickly and easily remove and replace the disc, and lengthens the life of the abrasive. 4. 9 Inch 8 Hole Sandpaper Discs: 9 inch sanding disc is 8 holes punched, which prevents the machine from being blocked by dust during use and plays a better cleaning effect, offers better surface finishes, and perfect cleaning and polishing effect. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.