1. MULTIFUNCTIONAL SET: for manicures and pedicures, plus a terry towel: compact double-sided small nail file; 3mm thick medium nail file with two different grit surfaces; 6mm thick large foot rasp with two different grit surfaces and a knotted string for handling. 2. GREAT FOR HEALTHY NAILS - Won't chip, tear, or split nails. The gentle surface makes your nail care easy, smooth, and, most importantly, safe without damaging your nails. Better than emery boards and paper nail files. Professional manicure and pedicure without the extra cost. 3. TAKE IT EVERYWHERE Use it whenever and wherever you want. Use it in a bath or in a chair, at home or while traveling. No batteries or spare parts - just wash it, dry it with a towel, and use it again. Protective sleeve for all nail files included, easy to store or take with you on the go. 4. PREMIUM QUALITY Crystal glass nail files are double-sided and made of top-quality Czech tempered glass. The grit is permanently chemically etched on both sides of the glass, so it will not deteriorate over time and will last a lifetime. 5. LIFETIME GUARANTEE - Effective filing surface allows for precision shaping. Each file comes with a lifetime guarantee covering the filing surface. All glass nail files we sell are chemically hardened, which greatly increases their mechanical resistance.