High qualityMade of high quality aluminum oxide grain and high strength resin, durable and long lasting, and anti-static, very suitable for grinding and polishing Easy to use:With serrated parts cutting, multiple sander sheets are easy to split into two halves, with hook and loop design, easy and quick to stick Applicable: Widely used in grinding and polishing metal and non-metal, wood, rubber, leather, plastic , stone, glass and other materials Good choice for sanding and polishing. Mouse sanding sheets are made of abrasive aluminum oxide, which is durable and anti-static. Grain is larger, polish effect is finer. Suitable for use with 140mm Black and Decker Detail sander and other 140mm sanders. Hook and loop on the back, and pre-punched with 4 holes for dust extraction, easy to use. Wide application. Apply to metal and not metal, wood, rubber, leather, plastic, stone, glass and other materials grinding, polishing and so on.