specification: Item Type: Glass Fingernail Files_x000D_Material: Glass_x000D_Specifications: 5Pcs Features: 1[Unique Technology] Nail file adopts bright nail black technology, pure physical polishing, healthy and safe, no chemical residues. 2[Double Sided Design] Glass fingernail files have different thicknesses on both sides, making it easier to polish and use. 3[Efficient Manicure] Physical polishing, bright nails do not damage nails, and micro particle grinding is more delicate. 4[Easy to Clean] Glass nail file is hygienic and convenient, with rounded edges and corners, safe and not hurting your hands. 5[Applications] Nail files are perfect for all your nail file needs, nails, hobbies, crafts. A must for professional salon and home DIY nail art. PackageList: 5 x GlassFingernailFiles 5 x Protective Case