30 Pieces of 5 Diamond Polishing Pad for granite marble concrete. PLUS 3 Pieces of 5 Professional Grade Glaze Buffing Pad (they bring mirror like polished effect to natural stone granite marble). The 30 Pieces of Pad are. 2 X Grit 30. 5 X Grit 50 100 200 400. 2 X Grit 8 00 1500 3 000 10000. 3.2mm thickness. Recommend 2500 – 5000 rpm. Wet or dry use (wet use recommended).