(a) 62 Pieces of 5 Diamond wet dry use. Wet use recommended Polishing Pad for granite marble concrete travertine. 12 X Grit 50 100. 10 X Grit 200 400. 5 X Grit 800 1500. 4 X Grit 3000 6000. (b) 2 Pieces of 5″ / 5 Inch Diamond Turbo Row Grinding Cup Wheel for concrete stone surface sanding smoothing (with 5/8″-11 Female Thread arbor). (c) 1 Piece of (5/8″-11 Female Thread arbor) 5″ Aluminum Velcro Backer/Pad Holder. (d) 5 Pieces of 5″ Diamond Turbo Saw Blade for granite marble Tile Floor cutting (inner hole diameter is 7/8″-5/8). Pad Thickness: 3.2mm. Recommend 2500 – 5000 rpm (grinder or polisher’s speed lower than 5000 RPM). Wet or dry use (wet use recommended).