Aluminumalloy body with professional feel Solid metal shell provides a comfortable weight and a sturdy, hand feel compared to ordinary plastic devices. Aluminumalloy construction improves heat dissipation, reducing surface warmth during extended use and helping maintain consistent operation. Continuously variable speed for precise control Infinitely adjustable speed lets you dial in the exact rotation for the task, from slow and gentle to fast and efficient. Adjust like a volume knob to handle thick, stubborn calluses or to perform light maintenance without abrupt changes in power. Fine, patterned grinding head for even results The grinding head uses a refined pattern and durable material to remove hardened skin evenly, shaving layers away rather than gouging. Combined with the variable speed control, the head lets you work close to edges and near toes with greater precision, helping preserve surrounding healthy skin when used carefully. What this product does for you Efficiently reduces thick calluses when higher speed and firm contact are needed. Allows gentle smoothing and maintenance at lower speeds for regular care. Produces even, controlled removal so you can reveal smoother skin gradually and predictably. Design and performance highlights Material: aluminumalloy shell for durability and heat management. Operation: continuously variable transmission for smooth speed adjustment. Ergonomics: handheld form factor with a balanced weight for comfortable use during extended sessions. Grinding head: fine patterned surface for uniform abrasion and controlled results. Practical use scenarios Home pedicure: remove thick heel calluses quickly at higher speeds, then finish with lowspeed smoothing. Regular maintenance: use a low setting for weekly touchups to keep feet smooth without overworking the skin. Precision work near toes and edges: lower speeds and the refined grinding head let you address small areas without disturbing nearby healthy skin. Notes on use Adjust speed according to the condition of the skin and work gradually for results. Maintain a light, steady motion and avoid prolonged pressure in one spot to achieve even removal. This device combines durable metal construction, precise speed control, and a fine grinding head to provide a reliable, comfortable tool for athome or professional foot care tasks.