... : 4'',5'',6'', 7'' 2. Grain: 40#-320# 3. Material :ZA 4.TYpe: T29 (angled )/ T27(flat ) Flap disc/ flap wheel ... : 4'',5'',6'', 7''2. Grain: 40#-320#3. Material :ZA A (alumina oxide )4.TYpe: T29 (angled )/ T27(flat )5 ... , AFTER POLISHING , THE SURFACE WILL BE MORE SHINE AND SMOOTH . ZA FLAP WHEEL/ ABRASIVES DISCWITH KLINGSPORE SANDING PAPER