Everything You NeedEach sandpaper measures approximately 93 x 185mm; including 4 different kinds of grits from coarse to fine: 60 80 120 240 , 10 sheets for each grit, total 40 sheets which can satisfy almost all your general polishing requirements. with the grit mark on the back, the smaller the number, the rougher the polishing effect, the larger the number, the finer the polishing effect. Premium Quality The sanding sheets are made of high quality aluminum pellets and high strength resin to prevent pilling, mouse sander sandpaper, anti-static and anti-jamming, high strength resin bonding system increases service life, good choice for sanding and polishing. Premium Aluminum OxideDurable aluminum oxide grit provides faster cutting, long lasting and anti-static, anti-sticking - a special anti-clogging coating on the stearate increases performance and durability. 8 Hole Bracketwith eighth note t and loop, sanding sheets are easy to stick on detail sanders quickly, pre-punched with 8 holes for dust extraction. Wide ApplicationSanding pads are widely used for wiping rust off metal surfaces and polishing or grinding non-metallic objects, such as plastic, wood, rubber, leather, glass, stone and more.