《Terahertz Necklace》 Terahertz 12mm Black Spinel Chain Length: Approximately 40-44cm ※ The terahertz appears dark in the photos, but it is closer to a silver-black color. 【Terahertz】 Terahertz ore, said to have the effect of activating the mind and body, emits a special electromagnetic wave called terahertz waves. Therefore, while it is expected to be applied in medical and industrial fields, it is also loved by many people as a power stone. ◆Caution ◎ There may be color errors depending on the monitor environment, so please refrain from purchasing if you are looking for perfection. ◎ It has been taken out of the bag for photography, so it is new and unused, but please refrain from purchasing if you are looking for perfection. Natural Stone Healer Healing Power Stone Health High Vibration