"1. Two in one-Our nano glass callus file is specially developed for wet and dry skin. Efficient foot care for the whole family 2. Safe and reliable-the extremely durable nano glass surface guarantees absolutely safe, fast and extremely reliable removal of all dead skin particles. 3. Hand pressure design-due to its very ergonomic shape, our foot file is perfectly held in your hand This is how you can gently care for your feet and hands in the most effective way. 4. Better than any electric file-save the trouble of buying expensive replacement blades Our high-quality processed foot files are durable, lightweight, stable and waterproof. 5. Recommended use-soak your feet in warm water for about 10 minutes. Now all rough areas of the skin can be removed comfortably and easily. Then apply lotion and enjoy."