Resin based Diamond abrasive, 5" Diamond Polishing Pads Wet White Buff - 1 Piece Used with Wet Grinders Polishers variable speed/constant speed Used for Granite, Concrete, Marble, stones, tiles polishing Optimal RPM 2200 Max RPM 4000 Also available in Grit 10, 30, 50, 100, 200, 400, 800, 1500, 3000, 6000, White Buff 5" STADEA Diamond polishing pads 1 piece grit 6000, perfect for Granite, Concrete, Marble, Stones, Tiles polishing.