"" This set includes 10 wet diamond polishing pads and a one-piece backing pad. It is suitable for polishing granite, concrete, marble, stone, tiles, etc. features: Made of high quality diamond powder impregnated with resin. Use of a special liaison officer. Strong grinding force and finesse. Polish quickly and use for a long time. No color is left on the stone after polishing. Perfect for granite, concrete, marble, stone, tiles, etc. Characteristics: Support block: M10 / M14 (optional) Color: as shown Material: diamond powder impregnated with resin Grain: 50 # / 100 # / 150 # / 300 # / 500 # / 800 # / 1000 # / 1500 # / 2000 # / 3000 # (coarse to fine, 1 piece each) Outer diameter: 80mm / 3 "" Internal diameter: 10mm / 0.4 "" Thickness: approx. 3mm Package size: 10 * 10 * 8cm / 3.94 * 3.94 * 3.15in Package Weight: 259g / 9.13oz Package list: 10 * wet polishing pads 1 * Backer Pad Note: 1. Please allow 1-3mm error due to manual measurement. 2. Due to the difference between different