The electric foot file for calluses is made of nano glass and plastic, with a fine abrasive pattern that does not damage the skin. Its ergonomic design makes it comfortable to use and helps quickly remove dead skin and cuticles. It can be used dry for exfoliation or in foot baths to remove softened calluses. It is easy to clean with a single rinse and its compact size allows for convenient storage and transportation. Additionally, it makes a nice gift. Follow the usage steps for best results and remember to apply a moisturizer after use to protect the skin.