Color: 10 Head Key benefits Removes hard skin and calluses: Coarse and fine rollers work together to reduce rough patches and smooth soles. Cleans as you go: Builtin vacuum collects dead skin and debris during use, keeping your workspace tidy and reducing cleanup time. Portable and easy to recharge: USB rechargeable design allows cordless use after charging from a USB power source. Replaceable roller heads: Roller heads are replaceable to maintain performance and extend product life. Features and performance Function: Electric foot grinder for exfoliating dead skin, smoothing heels, and refining callused areas. Rollers: Includes coarse and fine rollers to handle different levels of skin thickness and texture. Power: USB rechargeable for convenient power from USB ports, power banks, or USB wall adapters. Design: Handheld, portable format for precise control when treating specific areas. Hygiene and cleanup: Integrated vacuum system captures debris during operation for easier disposal. Practical use scenarios Athome pedicure: Use weekly to remove buildup on heels and maintain smoother feet between salon visits. Before wearing sandals: Quickly smooth rough spots and refresh soles prior to warm weather or special occasions. Travel and onthego maintenance: Recharge via USB and use cordless for touchups while traveling or after long days of walking. What to expect Improved feel and appearance of feet through regular use. Ongoing performance by replacing roller heads as needed. Clean operation thanks to the builtin vacuum collection system. Note: Color option listed as Color: 10 Head.