1. MULTIFUNCTIONAL SET: Includes manicure and pedicure tools, plus a terry towel: a compact double-sided small nail file; a 3mm thick medium nail file with two different grit surfaces; and a 6mm thick large foot rasp with two different grit surfaces and a knotted cord for easy handling. 2. 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. Get professional manicure and pedicure results without the extra cost. 3. TAKE IT ANYWHERE: Use it whenever and wherever you want. Use it in the bath or in a chair, at home or while traveling. No batteries or spare parts needed – just wash it, dry it with a towel, and use it again. Protective sleeve included for all nail files, making it easy to store or take with you on the go. 4. PREMIUM QUALITY: Crystal glass nail files are double-sided and made from top-quality Czech tempered glass. The abrasive surface is permanently chemically etched on both sides of the glass, so it won't degrade over time and will last a lifetime. 5. LIFETIME GUARANTEE: The 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, greatly increasing their mechanical resistance.