This professional electric foot file is designed specifically for women's foot care. Powered by a high-capacity 1200mAh 18650 lithium battery, it offers up to four hours of continuous use. Equipped with 40 different grinding heads of varying grit, it can specifically address dead skin, calluses, and rough heels. Its ergonomic, lightweight design allows for effortless operation, making it an ideal choice for both home foot care and professional salon use. Key Selling Points . 40 grinding heads available From coarse grinding to callus removal and fine polishing, it meets your full range of foot care needs. . 4-hour ultra-long battery life 1200mAh lithium battery enables extended use, allowing you to treat multiple pairs of feet on a single charge. . Professional-grade power system High-speed motor with stable output for efficient grinding without lags. . Safe and gentle care Anti-over-grinding design protects sensitive skin from excessive damage. . Bulk Packaging 40-piece refill pack, suitable for shared use at home or in beauty salons. Product Specifications Brand: Ruibo Model: RB-5680 Type: Electric Foot File Battery: 18650 Lithium Battery 1200mAh Usage Time: 4 hours Package: 40-piece grinding head set Net Weight: See packaging Packaging Dimensions: 13.8 × 4.6 × 19.5 cm Outer Carton Dimensions: 57.5 × 25 × 42 cm (Gross Weight: 11.3 kg) Target Audience: People with thick, dead skin on their feet; Women who wear high heels for a long time; Beauty salon/pedicure salon workers; Home care needs