Terahertz Necklace Mirror Ball Cut, Approximately 6mm Beads Length: Approximately 45cm Terahertz waves are believed to have various effects on the human body. Specifically, they are expected to activate cells, promote metabolism, repair tissues, boost immunity, improve blood circulation, alleviate cold sensitivity and swelling, aid in fatigue recovery, and improve skin luster and firmness. Stored at home. Please refrain from purchasing if you are sensitive to such matters.