Although it has been rarely used, it has been stored for a long time. It cost ¥75,000 when purchased. 10 germanium beads, 5.0mm each Total length: 27.5cm Germanium is a semiconductor extracted from minerals such as silver. When warmed by body temperature, it emits negative ion electrons. The germanium beads used in this product are made by sintering germanium with a purity of 99.99% or higher, and the germanium content is 100%.