《Terahertz Necklace》 Terahertz Cross Pendant 51mm Adjustable length up to 64cm ※Looks black, but it's silver☆ 【Terahertz】 Terahertz waves act on the deep parts of human cells, restoring the rhythm of the cells to normal and are said to be effective in improving stiffness and blood flow. Therefore, it is also called "growth rays" or "life rays" and is thought to play an important role in metabolism and growth. This effect is being studied in many research institutions. ◆Please note ◎Although it is new and unused, please refrain from purchasing if you are looking for perfection or are concerned about minor details. Beauty Health