1. This is a direct-sales foot care tool - a foot file, specifically designed to take care of your feet. It integrates multiple powerful functions and is a helpful companion for your daily foot care. 2. In terms of design, it is equipped with a digital display function, making the operation process clear at a glance. You can easily keep track of its usage. It also has a waterproof feature and can be directly washed, which is convenient for cleaning and makes it more hygienic to use. It uses a USB charging method, freeing it from the constraints of traditional power sources, and is very convenient to use and carry. 3. In terms of usage, it is mainly used to remove dead skin and calluses on the feet. While removing dead skin and calluses, it can also massage the feet, bringing a comfortable experience to your feet and making them regain smoothness and softness. After each use, it's like giving your feet a deep SPA, allowing you to feel an unprecedented sense of freshness and comfort. 4. Whether it's for daily foot maintenance or professional care during manicures, it can handle the task.