Moxibustion stone necklace was invented by Erkang of Xi. According to public information, moxibustion stone necklace belongs to a magnet made of pure natural materials. People can put this stone on the acupuncture point they want to moxibustion, which can play the same role as moxibustion. Xierkang Medical Care Technology Co., Ltd. was founded by Mr. Zhang Zhiwei in May 20 10, and is located in the Pioneer Park of Ningbo High-tech Zone.