I wore these for a few days. Necklace: 4mm beads, 40cm with a 5cm adjuster Bracelet: 6mm beads, 18cm Please understand that these are used items, and purchase them with your understanding. ⚫︎ Terahertz Ore Terahertz waves are said to restore vitality and youthfulness to living organisms. Recent research has proven the effects of terahertz ore. Terahertz is now expected to be applied in the medical field. Specifically, it is said to activate the skin by vibrating approximately 1 trillion times per second, and is effective for beautiful skin. Furthermore, it is said to improve stiff shoulders, sensitivity to cold, and sleep quality.