This set includes 11 wet diamond polishing pads and 1 backing pad. It is suitable for polishing granite, concrete, marble, stone, tiles, etc. Specifications: < Colour: As Shown /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 < br 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.