Diamond Grinder Disc 11 Pieces 4 Inch Diamond Wet Polishing Pads Grinding Disc + 1 Backing Pad For Granite Marble Stone Ceramic Tile Concrete This set includes 11pcs diamond polishing pads and 1pcs backing pad. It is 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 crushing force and softness. Polish quickly and use for a long time. No color left on the stone after polishing. Perfect for granite, concrete, marble, stone, tiles, etc. Specifications: Color: As shown! Material: Diamond powder impregnated in resin! Grit: 2*30/50 Grit, 1*100/200/400/800/1500/3000/6000 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: 11 * Wet Polishing Pads 1 * Backing Pad Note: 1. Please allow 1-3mm error 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. Please allow 1-3mm error 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.