Features: brand new and 180-7000 Mix Set include: 180 , 240 , , 400 , 600 , 800 , 1000 , 1200 , 1500 , 2000 , 2500 , 3000 , 5000 , 7000. One of each. All with 2.35mm shank for a most power drill and grinder. Can be installed in electronic engraving machine, hangings mill, hand mill and other machines. Suitable for polishing and grinding all kinds of metal, stone, wood, jewelry, bone teeth, and so on high-quality sandpaper materials, practical and Specifications: Material:Sandpaper Length:Approx.5.8cm/2.28inches Handle diameter:Approx. 2.35mm/0.09inches Note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 13x Sand Paper