♥ 180-7000 mix set include: 180 , 240 , 400 , 600 , 800 , 1000 , 1500 , 2000 , 2500 , 3000 , 5000 , 7000. One of each. ♥ All with 2.35mm for a most power drills and grinders. ♥ Can be installed in electronic engraving machine, hangings mill, hand mill and other machines. ♥ Suitable for polishing all kinds of metal, stone, wood, jewelry, bone teeth, and so on ♥ Manufactured of quality sandpaper materials, practical and durably.