The diamond dry polishing pad is the premium quality polishing pad. It will be good to get a high quality result on polishing. Detailed Description - Diameter: 4" - Available Grit: 50, 100, 200, 400, 800, 1500, 3000, Black Buff & Back-up pad - Back Attachment: Velcro - Application: Granite, Marble, Stone, Tile and more...