Quantity and practial set - package include 200pcs sanding disc pads, 10 grits, 20 pieces for each grit: 80/ 180/ 240/ 320/ 400 /600 /800 /1000 /2000 /3000; 1pc 1/4 inch shank backing pad and 1pc soft foam buffering pad, large quantity to meet your different polishing need Superior material - made from aluminium oxide abrasive, and anti-static, useful for corner cleaning and polishing, such as polished metal, wood, jade and so on Soft foam buffering pad - the sanding discs kit include 1pc soft foam buffering pad, pecfect for reducing shake while using, please that the soft foam buffering pad have connected with the sanding discs and the backing pad tightly befor using Hook and loop back - the diameter of the hook and loop sanding pad back is 2 inch, suitable for most kinds of rotary tools, such as die grinders, air grinders, electric drills, etc Warm note: these sanding disc pads match with 2 inch backing pad, not suitable for adhesive sticker sanding pad, please clean the dust and replace the old sanding pad before use them Specifications Color: brown Material: Alumina + Sponge Size of pad: 2 inch Back technique: hook and loop Diameter of shank: 1/4 inch Length of shank: 1.8 inch Note These sanding discs are consumables so that we offer 200 pieces for easy to replace. These sanding disc pads match with 2 inch backing pad, not suitable for adhesive sticker sanding pad, please clean the dust and replace the old sanding pad before use them. For safety, please wear goggles or eyes protection tools in case the cleaning agents fly out while turning. Package include 20 * 80 grit sanding discs 20 * 180 grit sanding discs 20 * 240 grit sanding discs 20 * 320 grit sanding discs 20 * 400 grit sanding discs 20 * 600 grit sanding discs 20 * 800 grit sanding discs 20 * 1000 grit sanding discs 20 * 2000 grit sanding discs 20 * 3000