Caution: color: we send according to the color of the first picture, in the package: if the quantity is not stated in the description, we will shlp the item according to the quantity and model in the title. New nano glass foot grinding foot device single foot grinding stone pedicure file peeling foot foot file g1209| foot rasps blue 1. Soak your feet in warm water for 10-15 minutes. During this time, you can put some foot bath potion or essential oil. 2. After soaking the feet, wait for the calluses and dead skin to age, dry the feet with a towel, and remove them according to the thickness of the stratum corneum. 3. After removing dead skin, wash with clean water, and apply foot cream after drying the water, the effect is more ideal. Tips: 1. This product is only used for people with thin calluses and thin dead skin. It is recommended to use a pedicure knife to cut off thick calluses before using this product to grind the feet. 2. It is recommended to use once a week, not too often. 3. After use, wash with clean water, then hang in a ventilated place to dry 4. This product is plastic + stainless steel file, waterproof, and away from high temperature and acidic liquid