Granite Diamond 6" Inch Polishing Pads Wet/Dry Set of 8+1 Backer Pad FREE SHIP Best Value Concrete Marble Travertine Terrazzo Engineer Stone Glass Quartz counter top floor renew http://www.amazon.com/dp/B019B6G51G 8 pieces of 6" Pro Grade Wet / Dry Polishing Pad. We recommed wet use. 1 X Grit 50 100 200 400 800 1500 3000 6000. 1 Piece of 6" Velcro Pad Holder (5/8"-11 Thread). NOT M14 Thread. Velcro Backer's max capacity is 5000 RPM. Please don;t use it with high speed grinder.