Wet/Dry Sandpaper Assortment (20-Pcs) Our 1200 grit medium/fine sand paper works for wet or dry sanding. This flexible, silicon carbide abrasive paper is perfect for metals, glass, ceramic and stone, and features a waterproof packing to prevent disintegration during wet use. Each sheet measures 9 by 11 inches. This assortment includes two each of the following grits ,180 ,240 ,320 ,400 ,600 ,800 ,1200 ,2000 ,2500 ,3000 Sheet size: 11 x 9 inches Grit: 180-3000 Material: Silicone Carbide and paper Country of origin: United Kingdom