Blue Lotus brings us these Chinese Exercise Balls, used in the Orient as part of holistic health care for over 500 years. Each 45mm chrome sphere contains a small, pleasant-sounding gong, said to call the Chi energy into wakefulness. One revolves them in the palm of the hand; from there the fingers are connected to the cranial nerve and the vital organs, stimulating key acupuncture points and improving energy circulation through the body. Each set of two comes with its own silk carrying bag.