Material: Terahertz ore 9.5x13-14mm Origin: China Size: Approximately 9.5x13-14mm Wrist size: Approximately 17cm (elastic) Weight: Approximately 26g Features and Meaning: This is a popular terahertz bangle for both men and women. Terahertz is recommended as a health amulet, making it a great gift item. 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. Terahertz wave energy is said to activate cells, helping to maintain health and slow down aging. Product number: BG6048