This is a terahertz bracelet. Terahertz waves are located in the intermediate band between radio waves and light, and are said to vibrate one trillion times per second. The following effects are expected from the action of these terahertz waves on the human body: Improved natural healing and stress relief: Terahertz ore is expected to enhance natural healing power and provide stress relief and relaxation effects. Cell activation and blood circulation promotion: Terahertz waves can activate the function of cell membranes, potentially promoting metabolism and supporting tissue repair and regeneration. It is also said to promote blood circulation and improve the supply of oxygen and nutrients. Improvement of mental and mental health: The subtle energy contained in terahertz waves is believed to regulate brain waves, bringing mental refreshment and balance, and enhancing the effects of meditation and healing. Beauty effects: Effects such as improved blood circulation, accelerated metabolism, improved cold sensitivity, improved immunity, and regulation of the autonomic nervous system are expected, and it is also attracting attention in the beauty field. By incorporating it into cosmetics, it is expected to improve skin penetration and anti-aging effects. Inner diameter 16cm ✴︎ Includes 3 extra blocks. ✳︎ Other terahertz designs are also available. Please note that this item may be removed as it is also listed on other sites. Thank you for your interest.