sanding disc(abrasive tools) Abrasive:aluminum oxide Size:2" Grit:#40,#60,#80,#120 ... ,long life,soft polishing for low noise for grinding ,blending,leveling and finishing aluminum oxide abrasive cloth 2" #80,#120 water ... ,long life,soft polishing for low noise for grinding ,blending,leveling and finishing sanding disc(abrasive tools)