Bianshi is a kind of stone that can cure diseases. It contains more than 30 kinds of trace elements and minerals beneficial to human body, and has strong far infrared and ultrasonic characteristics. Therefore, all kinds of bian stone products also have high health care and health preservation value. Take Bian Shi comb as an example, it not only plays a mechanical role, but also has dual physical therapy functions such as infrared wave and ultrasonic wave.