Nuga Best Products is made of Tourmanium Stones. The Tourmanium stone is composed of the semi-precious stone Tourmaline, Germanium, volcanic rock, and elvan rock. When the Tourmanium stone turned on, it emit the warm heat of Far-Infrared Rays deep into the body,stimulating blood circulation and cell activity in the exposed body area. The Tourmanium stone also naturally emit healthy Anions due to its Tourmaline and Germanium composition.