Flap disc,flap wheel 1. Diameter: 4'',5'',6'', 7'' 2. Grain: ... 40#-320# 3. Material :A 4.TYpe: T29 (angled )/ T27(flat ) Flap ... disc/ flap wheel/ abrasives disc/abrasives polishing disc /mop disc/1. Diameter: 4'',5'',6 ... AFTER POLISHING , THE SURFACE WILL BE MORE SHINE AND SMOOTH . Abrasives flap wheel