Diamond Polishing Pad wet polishing pad Diameter:4" Dimension:3MM thickness reasonable price Diamond Polishing Pad wet polishing pad Diametr:4"Diamesion:3MM thicknessFixed in:Grinding machineGrit:50#,100#,200#,400#,800#,1500#,3000#,BUFFApplication:Polishing stoneGrade:Economy If you are interested in this product, Please inquire us for more information