This package carries (a)-(b). (a) 15 Pieces of 7 / 180mm DRY Diamond Polishing Pad for concrete granite stone marble. 2 X Grit 50 100 200 400 800 1500 3000. (b) 1 Piece of 7 Inch / 180mm Convertible Rubber Dust Shroud. Easily attaches to a wide variety of 7 Inch / 180mm grinder/polisher, like Metabo, Makita, Bosch, Dewalt, Milwaukee. This kit also attached 7 convertible shroud, mounting hardware, instructions, and the 4 pictured adapters. This convertible dust shroud has easy flip-up access to allow your grinder to get close to edges, while still containing dust!