HEALTHY NAILS – This salon-grade file gently smoothes your nails to prevent roughness, splitting and peeling. With professional precision, it seals the edges to provide a long-lasting base for your manicure or pedicure and perfectly shapes the nails to promote healthy growth. Suitable for natural nails, this stylish glass file is a must-have tool in your home manicure kit. , LONG-LASTING – Want your manicure tools to last longer? Unlike emery boards, professional glass files are extremely hard-wearing and will not rust or wear down quickly. Made from high-quality glass, the Mylee Crystal Nail File comes with an impressive 5 year guarantee. Not only does this mean less wastage, but it provides amazing value for money.