1USB interface power supply, you can use a variety of power supply methods such as mobile phones, sockets, computers and power bank. 2The metal bearing runs calmly and stably, has a long service life, and is not hot. 3Pentype polishing pen, you can put it in your bag and carry it with you, you can manicure at any time. 4It is suitable for nails and pedicures, polishing and nail removal, removing thick dead skin and calluses, and is widely used. 5Round head fine sand polishing head is used to repair the skin surface after exfoliation; Round head type medium fine sand polishing head is used for polishing dead skin of toe, foot surface, heel and other parts; Round head sanding head is used to remove dead skin and calluses that are hard on the sole. 6A variety of different types of polishing heads, you can choose the appropriate model according to your needs, suitable for home, nail salons, etc.