4" 4 Inch Diamond Damo Polishing Pad 90 Pieces Granite Marble Concrete 90 Pieces of 4" Diamond Polishing Pad (3mm Thick) for concrete stone. 90 Pads are: 15 X Grit 50 100 200 400, 10 X Grit 800 1500, 5 X Grit 3000 6000Buff. Currently (from May 18- June 1, 2013) we are doing a trip in Hong Kong. If you buy between May 18- June 1, we will send to you by Hong Kong DHL. DHL usually arrive your door in 3-6 days.