Half inch thick 4" diameter white resin high diamond content for dry floor polishing pads (pucks) for polishing of concrete, granite, marble, terrazzo, natural and artificial stones.  High diamond content designed for wet or dry polishing especially with multi-head machines. Select from grit #50, #100, #200, #400, #800, #1500.   Sold and shipped by Granite Polishing Pads. USPS shipping only