Features: [Premium Material] The sanding paper disc is made of aluminum oxide material, durable, anti-static, flexible, wear-resistant, non-blocking. Smooth particles, little dust, the sanding paper disc has fast grinding force, high wear resistance and long service life. [Various Grits] Sandpaper with different grits from coarse to fine grit, 80/120/180/240/320/400/600/800/1000/1500/2000/3000, which can meet your different polishing needs. [Easy to Use] The air tool backing plate with 1/8" and 1/4" shank can be used with most air or electric drills, grinders and other rotary tools. You can even place the pad directly on pneumatic tools without shank. [Size & Packaging] The package includes 240pcs 2 inch diameter sandpaper (each grit sandpaper 20pcs), 2pcs soft foam dampening pads, 1pcs air tool backing plate with 1/8\" and 1/4\" shank, 1pcs sanding plate with 1/4\" round and hexagonal shank. [Wide Application] The sanding paper can be used for polishing, such as metal, wood, plastic, aluminum, artificial stone, wooden furniture, mold processing, precision equipment polishing, car polishing, jade jewelry polishing. Package includes: 240x sanding paper discs 2x soft foam dampening pads 1x air tool backing plate with 1/8\" and 1/4\" shank 1x sanding plate with 1/4\" round and hexagonal shank