[High Performance]: The polishing pads are composed of high quality resin diamond sand, which are and . The seam design makes the disc softer, dissipates heat faster and reduces noise [Diamond Wet Polishing Pads Set]: The 4 inch polishing pads with 8 different grits(50/100/200/400/800/1500/3000/6000 grit) meet your different needs with 1pcs wool polishing pad, 1pcs 5/8 inch-11 thread backing discs and 1pcs 8mm drill adapter [Wide Applications]: The concrete polishing pads for grinder are perfect for surfaces or edge such as quartz, , marble, terrazzo flooring, glazed tiles, vitrified tiles, natural stone, glass and concrete countertops.In order to achieve good sanding results, you can choose the smaller, coarser discs to start working first, and in turn choose the larger, finer discs to keep adjusting [Easy to Use]: The hook and loop design makes the diamond polishing pads convenient to put on or . It's easy to connect the threaded pad to variable-speed polishing machines, , household drills or other rotating tools. Recommended RPM 5000 [Warm Notice]: The 50-200 grit diamond pads for polishing can be used either dry or wet, but 400-6000 grit must be used with water for optimum polishing results. Wear such as gloves and safety goggles when using this product. Before use, check the thread and speed of your machine<br><br>Material: Resin + Rubber Color: As shown The product has slight color difference/difference, which does not affect the use<br><br>Package Contents: 11 Packs Diamond Concrete Polishing<br><br>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.