For polishing stones with water, made of resin, diamond powder, etc....................................................... Detailed Product Description Diamond Flexible Polishing Pads, wet pads DiameterThickness (mm) GritsInchmm3802.5/3.0#50,#100,#200,#400,#800,#1500,#3000 Buff41002.5/3.051252.5/3.0For all kinds of stones, concrete, ceramics, glass, we approved by ISO9001:UQ100566RO system. Any ...