2+2 Precise Care: Equipped with two dedicated attachments for different areas—a foot file for removing stubborn heel calluses, and a nail file for removing toe calluses/thick cuticles, suitable for light to moderate dead skin buildup. Two dedicated foot file attachments—one permanent nano-glass foot file (eco-friendly, washable, and reusable) for personal daily care; and one replaceable sandpaper head for home hygiene. Convenient Charging: Lightweight cordless design with a non-slip handle—free from cables for travel. The upright charging base makes storing and charging this electric callus remover easy and convenient. With its elegant colors and appearance, this electric callus remover is the perfect gift for barefoot, flip-flop, sandal, and high-heel lover. Intelligent Digital Control: The electric callus remover features an LCD display showing battery level and offers 6 adjustable speeds. Pressure can be adjusted for sensitive skin or stubborn dead skin areas to avoid excessive abrasion. The left and right rotation direction can be selected according to personal preference. Note: The foot file body is not waterproof, but the detachable filing head can be washed separately. <br>Pre- and post-use care guidelines: Dermatologists recommend softening feet with warm water for 10-15 minutes before use, and applying moisturizer (40% urea foot cream recommended) afterward to prevent over-exfoliation and maintain effectiveness. Medical professionals recommend using the foot file 1-2 times per week. <br>User safety notice: This heel file/foot file is designed for healthy adults with mild to moderate physiological calluses and is suitable for use without wounds. Due to the risk of nerve sensitivity, this product is not suitable for pathological calluses, diabetic patients, open wounds, or infected areas.