1. Material: ABS+Metal
2. Stainless steel file design, easy to remove the old, thick corns on the heel
3. Sturdy and durable, not easy to corrode and rust
4. Egg-shaped design, easy to hold, not easy to slip
5. No need to charge, can be used in the shower, safe and risk-free
6. To achieve better results, you can soak your feet in warm and soapy water for a few minutes before using the file to soften the skin
7. Size: about 10 x 5.5cm
8. Weight: about 63g