44 Pieces of 4 Diamond wet dry (wet use recommended) Polishing Pad for granite marble concrete travertine sandstone. PLUS 10 Piece of 4 Professional Grade Glaze Buffing Pad. (they bring mirror like polished effect to natural granite marble). The 44 Pieces of Pad are. 9 X Grit 50 100. 8 X Grit 200 400. 4 X Grit 8 00. 3 X Grit 1500 3 000. 3.2mm thickness. Recommend 2500 – 5000 rpm. Wet or dry use (wet use recommended).