Features Resin based Diamond Polishing Pad Polishes Concrete, Marble, Granite & Natural Stone Can be used wet or dry, ideal for variable speed polishers Available in grits 50,150, 300, 500, 1000, 2000, 3000 & Buff Available in 100mm (4″), 125mm (5″) & 180mm (7″) Velcro Backed for use on Backing Pads