Premium Grade Wet 4" Diamond Polishing Pads 18 Pieces DAMO White Final Glaze Buff Rubber Back Holder Granite Concrete Marble Travertine Glass Quartz Terrazzo counter edge polishing FREE SHIP (United States) 18 pieces of 4" Pro Grade Wet / Dry Polishing Pad. We recommed wet use. 4 X Grit 50, 3 X Grit 100 200, 2 X Grit 400 800 1500 3000. 1 Piece of 4" Velcro Pad Holder (5/8"-11 Thread). NOT M14 Thread. 1 X professional Grade Glaze Buff Pad brings concrete granite stone mirror like polished result.