[4 Inch Diamond Polishing Pads]: It comes with M10 Backer Pad, 18-Piece Wet/Dry Polish Pad Kit for Drill Grinder Polisher and 30-10000 Grit Polishing Pad for Granite, Marble, Concrete, Stone and Quartz. [High Quality Material]: Pads are made of high quality diamond particles and resin, making them durable and long lasting. [Easy to Use]: The M10 Backer Pad making it easy to switch out the pads and use them with any drill or grinder. [Perfect for any Job]: This set includes 30-10000 Grit (#30, #50,#100,#150, #200, #300, #400, #500, #600, #800, #1000, #1500,# 2000, #3000, #5000,# 6000, # 8000, #10000)Polishing Pads, giving you the perfect finish for any of your projects. [Wide Application]: With this set, you can rest assured that the job will be done right, the first time.Great for all solid surface materials such as quartz, granite, marble, terrazzo floor, glazed tiles, vitrified tiles, natural stone, glass, and concrete countertops. etc. For wet and dry polishing, for best results use polishing pads with water. Colour:As Shown Material:resin+diamond Package Contents: 1set * 30-10000 Grit Polishing Pads (#30, #50,#100,#150, #200, #300, #400, #500, #600, #800, #1000, #1500,#2000, #3000, #5000,#6000, #8000, #10000) 1 * 4 inch M10 Backer Pad Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.