Portable and Light: It's easy to carry, your nail work anytime anywhere. Perfect for home and salon use. Multifunctional: Designed for the best 3/32 inch nail machine, used for grinding, smoothing, shaping, shortening and polishing for all nail art as well as cold skin removal. User Guide:Insert the manicure sanding band over the drill bit. Use 80# to remove the gel or nail polish, it can also be used to shorten acrylic or artificial nails; Use the 120# can file the nail, shape and smooth; Then remove the cuticle on natural nail with 180#. Quality: High quality nail abrasive belts are durable and don't fall apart quickly. It can increase the life of the grinding bits. Package includes: There are 3 large sanding bands in this package, # 80 coarse GRIT file, # 120 medium grit file and # 180 fine grain file, each size has 70 pieces, total 210 pieces.