This set includes 11pcs diamond polishing pads and 1pcs backing pad. It’s suitable for polishing granite, concrete, marble, stone, tiles, etc. Features: Made of resin impregnated high quality diamond powder . Polishing pads with different grits, meet your different needs. Strong grinding force and softness. Polish quickly and use for a long time. No color left on stone after polishing. Perfect for granite, concrete, marble, stone, tile, etc. Features: Color: As shown ! Material: Diamond powder impregnated in resin! Grit: 230/50 Grit, 1100/200/400/800/1500/3000/6000 Grit Outer Diameter: 100mm / 4" Internal Diameter: 15mm / 0.6" Thickness: Approx. 3mm Package size: 10 * 10 * 7.8cm / 3.94 * 3.94 * 3.07in Package weight: 429g / 15.13oz! Package list: 11Wet Polishing Pads 1Backing Pad Note: 1. Please allow error 1 -3mm due to manual measurement. 2. Due to the difference between different monitors, the picture may not reflect the actual color of the item, pls in kind prevail . Note: 1.