1.diamond wet flexible polishing pads 2.surface prominent 4.diameter 100mm,thick2.5mm 5. ... they could be attached to any of backer pads very easy. Diamond Wet Polishing Pads are widely used to polishing marble,granite ... ,concrete,and other stone The grits of pads are from #50, #100, #200, #400, #800, #1500, #3000 ... grit, finally to polish High quality wet diamond polishing pads