Product Description ¯¯¯¯¯¯¯¯¯¯ Terahertz Mirror Round Cut Health Bracelet 18cm ・Terahertz 6mm 18cm This stylish health bracelet with a metallic silver color gives a cool impression. Please give it a try. It is made durable with four layers of Opeon rubber. This is a handmade, one-of-a-kind item. Terahertz Terahertz waves are wavelengths that emit a frequency of 1 trillion times per second and are said to have various effects on the human body and substances. Regarding the human body, it is said to improve sleep disorders, stiffness, and coldness. You can see a dazzling reflection of light from the metallic base.