This set includes 11pcs diamond polishing pads and 1pc backing pad. It is suitable for polishing granite, concrete, marble, stone, tiles, etc. Features: Made of high quality resin impregnated diamond powder. Polishing pads with different grits, meet your different needs. Strong grinding force and smoothness. 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: Resin impregnated diamond powder! Grit: 2 * 30/50 Grit, 1 * 100/200/400/800/1500/3000/6000 Grit Outer Diameter: 100mm / 4" Inner 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