STADEA Grit 200 6" Diamond Polishing Pads Premium Grade Wet Flexible 2.2 MM High Professional Grade 6" Diameter Wet Diamond Polishing Pad Grit 200 1 Piece 2.2 MM high and flexible velcro backed Works great on Granite, Concrete, Marble and stones etc Optimal RPM 2200 Max RPM 4500 Also available in Grit 30, 50, 100, 200, 400, 800, 1500, 3000, Buff (Black), Buff (White), 10000