Specification: Material: Alumina Diameter: 75 mm/3 in Accessories: a 3 inch plate, a 6mm bar Grit: 80/240/400/600/800/1000/1200/1500/2000/3000 Grits, each Grit of 10pcs Quantity: 100pc Uses: car polishing and polishing computer case, mobile phone case polishing metal, etc. Features: This is a perfect package of 100pcs sandpaper and 1 sanding pad with shank and 1 sponge cushion. Durable and practical. Can be used with a polishing compound to produce a smooth finish Terrific for general polishing and has the ability to work with semi-rough finishes to refine them to a smooth luster. Package included: 100pc Sanding Discs 1*Drill Pad Notice: Please allow slight dimension difference due to manual measurement. Please consider the actual sizes in the listing as the pictures are generally enlarged to show detail. Due to different producing batches, product details might be a little different. If you minding the difference, please buy it carefully. Due to the light and screen difference, the item's color may be slightly different from the pictures. Thanks for your understanding. 100pcs 6 different grades sandpaper: 80, 240, 400, 600, 800, 1000,1200, 1500, 2000, 3000Grits, 10pcs of each type In artificial stone, furniture and wood products, metal, automotive and other items need sanding and polishing Perfect polishing effect, durable, good abrasion resistance, anti-static and anti-clogging, the first choice for sanding and polishing Perfect for cleaning and polishing,they can be used with polishing agent to create a smooth surface To prevent the pressure demage your backer plate, Please work it in a slow speed when start up, and than boost the speed gradually after the backer plate spin stable