[UPGRDED & GREAT VALUE SET]15 pieces of 4-inch granite/marble polishing pads (2 Grit 50#, 2 Grit 100#, 2 Grit 200#, 2 Grit 400#, 2 Grit 800#, 2 Grit 1500#, 1 Grit 3000#, 1 Grit 6000#,1 Grit 8000#), Comes with 1 PCS upgraded Nylon buckle rubber backing pad (5/8 - 11 thread) and 1pcs 8mm drill adapter, features greater flexibility, durability, absorption, will more effective at removing scratches and achieving a high-gloss finish [DRY & WET POLISHING]This diamond polishing kit is designed for wet and dry polishing. 50-150 grit can be used either dry or wet, but 300-8000 grit must be used with water to ensure optimal polishing results. Please follow the recommended rpm, use below 5000RPM to avoid potential damage to the surface [PREMIUM QUALITY]These granite/marble/diamond polishing kit are made of high-quality diamond powder, aggressive and durable. Hook and loop backing pad is made with premium-grade rubber, semi-flexible backer. The flexible design can adjust to different shapes of surface like corner or edge or curve surface [WIDE APPLICATIONS]Great for all solid surface materials such as granite, concrete, marble, quartz, stone, tiles, glass, etc. Ideal for countertops, tabletops, and splash-backs, and any other job for residential or commercial environments. For wet and dry polishing, for best results use polishing pads with water [EASY TO USE]Hook and Loop design is very convenient for you to install or remove the polish pads. Brass arbor 5/8inch,-11 thread backing pad will allow you to connect to variable speed polisher, grinder, household power drill, or other rotary tools. NEVER use with high-speed grinder. Colour: Random Color, don't accept the specified color Material:Diamond Package Contents: 1 x Wet Polishing Pads kit 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.