Specifications: 180mmWeight: 1.2kgMaterial: flockingPacking list: 50 pieces of different models50 Pieces Multi-Grit Sanding Discs Set - Our sanding discs will help you get many different grits options. You will get totally the 50 pieces sanding discs in different grades, including 40 grit, 60 grit, 80 grit, 100 grit, 120 grit, 150 grit, 180 grit, 240 grit, 320 grit, 400 grit. The number is larger, the grit is finer. High Quality Construction - Made of quality abrasive aluminum oxide, which is durable and anti-clogging. Aluminum oxide grit also provides fast cutting and a smooth finish on your project Universal Compatibility: The sanding discs (180mm) fit universal eccentric sanders on the market Wide Use & What You Get: When using your new sanding discs, Ideal for polishing and finishing on metal and non-metal, wood, rubber, leather, plastic, stone, glass and other materials.