[Safe and effective removal of dead skin] Our foot file adopts the upgraded 2.0 version of nanotechnology, and is made of high-quality nano-glass fine convex surface. It can precisely fit any skins and remove dead skin easily in 1-3 minutes. The material is safe and soft and does not damage the skin,suitable for people with sensitive skin and thick calluses,providing safe and quick foot care for you and your family [Dry and wet; easy to clean] Whether you want to take care of your feet in the shower, or want to take care of your feet while lying on the sofa or watching TV,; Foot rasp can satisfy your needs. Our foot file does not contain batteries and is waterproof and rustproof. You only need to rinse with clean water after use, convenient and simple [Professional Foot File] The foot file is made of ABS material, and the anti-drop design makes the foot grinder more durable. The polished surface is fine, it can easily surround dead skin, completely remove dead skin cells, and restore your smooth feet. Whether treating dry skin on hands and feet, hard soles, cracked heels, or calluses and corns, it's a professional and ideal choice [Ergonomic and portable design]; foot file conforms to the ergonomic design, and its streamlined shape better fits the curve of the palm, effectively preventing slippage. Our foot grinder is light and compact, can be held with one hand and is also easy to transport. The seamless design is safer and more hygienic Tips: Foot file is a professional nano foot sander. It only needs to be corrected once every 30 days. If you have calluses and cracks on your feet, soak your feet before use to soften dead skin. Finally, don't forget to apply moisturizer or foot cream. Compared to an electric foot file, it can be cleaned and reused without buying expensive blades