wet polishing pad grit:50,150,300,500,1000,2000,3000 diameter :80mm,100mm wet polishing pad ,which can be only used in wet conditionapplication:usded to polishing marble ,granite,cdramic and so on special-shape products grit :vary from 50#,150#,300#,500#,1000#,2000#,3000#.fast and long life time for polishing wet polishing pad