- Authentic Czech crystal nail file, recommended for professional and home care. - Strengthens and hardens nails, helping to keep them long, strong, and healthy. - Seals the keratin layers at the edge of the nail, preventing uneven edges and breakage. - Premium Bohemian glass, tempered and durable, maintains its integrity after multiple uses. - Does not corrode or rust, unlike traditional metal files. - Includes a rigid protective case, ideal for carrying in your bag and protecting the file. - Easy to clean and disinfect, reusable and environmentally friendly. - Allows filing in both directions for a smooth and comfortable manicure. - Perfect for those looking for an efficient, hygienic, and long-lasting manicure tool.