Materials:Nail Files are made with top quality adhesive tape and emery board materials. Designed with Semicircle Shape & Double Sides, these nice, sturdy & durable nail files provides you a comfortable nail doing experience.$Size12 Pcs size of 7.09 x 1.10 x 0.16 inches, these essential nail art tools are great for filing nails before nail treatment & nail extension. Easy and effective to use, removes ridges on your nail surface, ideal for poly extension gel, natural and artificial nails, manicure and pedicure, making your nails more beautiful.$Make upMust Have in Salons and Home- nail files are great for all your filing needs, Nails, Hobbies, Crafts. Must have in professional salons and diy nail art at home. A terrific gift for girls who love nail art as birthday gift, Christmas gift & Halloween Gift.$Washable & Reusable Quick & Easy to clean & water resistant due to that the 100/180 Nail Files are made with quality adhesive tape and emery board materials.$Multiple Uses: Nail shaping, nail grooming, nail styling and nail polishing can be used on your fingernails, toenails, natural nails, acrylic nails and false nails to make your nails more natural and beautiful.