The far infrared rays granular specks are make from a natural mineral known as electric stone. It can absorb and store up the energy of sun rays. Each molecule of this mineral carries with it far infrared rays magnetic wave energy. As long as there is a temperature, it will release far infrared rays magnetic wave energy which provides the heat actions to promote metabolism and blood circulation as Well as excretion of body waste. E. G. Harmful heavy metals that cause cancer, toxic elements in processed food, lactic acid that causes aging and fatigue, and excess subcutaneous fat that leads to obesity. Company: Yiwu Hengyu Electronic Co., Ltd.