1.Far-infrared Heat. 2.Promote Blood Circulation. 3.Negative Oxide Ion,Clean the Air. 4.Several Minerals,Green and Natural. Depending on ancient Sparex principle, our sweat stream physical therapy pads adopt international advanced far-infrared technology, made of several high-class natural minerals. It concentrates far-infrared ray, Negative oxide ion, sweat stream and other functions, having ...