The negative ion meridian health stick consists of tourmaline powder, negative ions, trace elements (such as germanium), and wrapped with special latex. It naturally emits weak electric current through tourmaline to create resonance, promotes capillary expansion, and absorbs vascular impurities, thereby improving blood circulation, accelerating cell metabolism, boosting immunity, relaxing nerves and muscles. Tapping on few target areas may relieve pain, drive away cold, and improve blood circulation. Pregnant women should avoid use.