Trina Professional Electric Nail File Machine Main Body Panel: It has a unique design that is light and elegant. It has an easy-to-use, full touch front screen. -It has a light, elegant and unique design, -It has an easy-to-use, full touch front screen design, -It has a storage area for nail file tips, which is more suitable for working at the bottom of the machine. -It has a special color design.-Metal handle provides durable and fast heat dissipation. Twist-Lock Handpiece: In this way, it is much easier to change bits. It is sufficient to turn the self-locking tool clockwise to unlock it, and counterclockwise to lock it. Smart LCD Touch Screen: You can check the speed at any time. Unique Child Safety Lock Design: Provides safe operation as forward and reverse rotation cannot be changed when the lock is open. Unique Storage Space: Saves space thanks to the hidden magnetic absorption storage box. It has a unique storage design.