Multiple Grits Sanding Discs ----- 80pcs per box, 8 different grits sandpaper assortment from rough to fine, 10x40/60/80/120/180/240/320/400 hook and loop Sanding Discs, to provide you with more choices when needed. 125mm Diameter 8 holes Mixed Grit, great for all 5 inch sanding machines.\nHigh Quality ----- High-quality alumina sanding discs pads, made of alumina abrasive, with special heat treatment, has excellent polishing, sharpness and wear resistance. Durable and antistatic, good choice for sanding and polishing. 8 holes is designed for efficient dust extraction.\nEasy to Use ----- Hook and Loop fastener, easy and quick to stick, strong and long lasting, not fall off when installed in use, easy to install and remove.\nWidely Used ----- Mainly used in wood, plastic, stone, glass and other materials grinding, polishing and so on, metal and non-metal materials of various complex profiles for rust removal, paint stripping, deburring, soldering point grinding.\nEven Sand ----- Resin.