This pack carries (a)-(c). Important Remind: Polishing Pad Holder’s max velocity is 5000 RPM. Please do not use it with high speed grinder or polisher. (a) 10 Pieces of 4″ / 4 Inch / 105 mm Diamond Turbo Cutting Blade for granite marble ceramic, thickness must be 10 MM or less (inner hole diameter 7/8″-5/8). (b) 1 Piece of 4″ // 4 Inch Polishing Pad Holder 5/8″-11 Female Thread arbor. Max velocity is 5000 RPM. (c) 44 Piece of 4 / 4 Inch Diamond Polishing Pad for stone concrete granite marble: 9 X Grit 50 100, 8 X Grit 200 400, 4 X Grit 800 1500, 2 X Grit 3000. And 1 Piece of 4 / 4 Inch Diamond Glaze Buffer (it brings mirror like polished result to natural granite marble).