●✅Made with Premium Aluminum Oxide grain. ●✅Open coat technology,antistatic, washable plus an additive in the resin to resist loading. ●✅Mainly used for wood / aluminum / non-ferrous metal / glass / plastic / stone. ●✅Excellent for polishing,grinding and finishing. ●✅15 pack assortment includes 3 each 80 / 120 / 150 / 240 / 400 Grits.