Dr. Edmund Wang devoted to the research and manufacture of health-related assistive device in 1992. Due to the growing frequency of the modern civil diseases, people are mostly in the status of minor ailment, which not only affect the health but also cause inconvenience of life. Hence Dr. Edmund Wang realize the key to good health is on both feet, which means “illness starts from ill feet; health stem from healthy feet.” It's the greatest invention for humanity . We called it STRONG FEET.