POLISHING DISC model:4",6",7",8",10",12" grite:BUFF ( ... ,GREEN,RED) use for grinding stone Apply:granite and marble POLISHING BUFF GRINDING DISCmodel:4",6",8",10"grite:#50,#100 ... : hight efficiency,long life with competitive price,outstanding polishing performace,excellent gloss diamond tools abrasive tools grinding tools Polishing buff disc specification:200mm,250mm grit:buff ...