?Everything You Need? Each sanding paper measures approximately 95 x 185mm; including 4 different grit types 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 . ?Superior quality ? Sanding sheets are made of high quality aluminum pellets and high strength resin to prevent pilling, mouse sander sandpaper, anti-static and anti-blocking, high strength resin bonding system increases service life, good choice for sanding and polishing. ?Premium Aluminum Oxide? Durable aluminum oxide grain provides faster cutting, long lasting and anti-static, anti-sticking - special anti-clogging stearate coating increases performance and durability. ? 8 Holes Bracket? With hook and loop, sanding sheets are easy to stick on detail sanders quickly, pre-punched with 8