Excellent Quality: These glass nail files are made of high quality tempered glass by double-sided etched technology that ensure your nails are kept from splitting and weakening. The glass is strong, wear-resistant & retains the integrity of the filing surface after multiple uses . Color&Packing: 3 color in total, Gradient purple, gradient blue and gradient red. Each nail file is packed in a separate protective case, and finally all in one plastic storage box . Easy to Carry: The size of the whole nail file is 15 x 1.5 x 0.7mm, it is lightweight compact and convenient to put in your cosmetic bag, purse or handbag for daily travel, and not only can be use for fingernails but also for toenails, and can be use for salon and at-home use . Reusable & Easy to Clean: Hygienic non-porous glass surface is not easy to get dirty, and they can be cleaned with water and used repeatedly, glass nail files do not corrode, rust or rot . Safety Nail Care: The double sided smooth filing surface glass file completes any manicure in any direction without damaging the nail, perfectly shapes natural while leaving them smooth ,which can contribute to the good conditions of your nails .