Feature:1. Made of highquality diamond powder impregnated in resin, strong and durable, and suitable for wet or dry polishing of stone.2. The pad holder has water inlet holes and can be used for wet polishing. Wet sanding can minimizing scratches3. Suitable for grinding and polishing granite, concrete, marble, stone, ceramic tile and glass.4. Made with high grain, provides superior high strength, high flatness and longer life.5. With compact size, very easy to carry and store, and it can saving time and improve work efficiency.Specification:Item Type: Sanding DiscsMaterial: DiamondModel: 3 inch white ground polishing pad (50 mesh)Color: BlueGrit Size: 50 gritOuter Diameter: Approx. 80mm / 3.1inInner Diameter: Approx. 10mm / 0.4inProcessing Objects: Marble, diamond, stone, ceramics, terrazzo, concrete polishingScope of Application: Stone, ceramic, terrazzo, concrete polishing.Package List:10 xSanding Disc