Mirror-cut terahertz, total length approximately 45 cm. Brand new, unused. It's elastic, so it can be used as a necklace! I have an inner diameter of 14 cm, so I can also use it as a triple bracelet ^ ^ Please check the photos. Purchased from a reliable natural stone wholesaler. I also use terahertz and have experienced its amazing effects, such as relieving stiff shoulders♪ The effects may vary from person to person, but I highly recommend it. I'm selling it at a low price, so no price reduction is possible. It will be shipped in simple packaging. Effects: The cell activation and blood circulation-promoting effects of terahertz waves can greatly improve our health. Furthermore, it can be expected to have a relaxing effect and reduce stress mentally, making it the perfect item for balancing the mind and body. Terahertz is said to emit terahertz waves that cause approximately 1 trillion molecular vibrations per second. It is said to be expected to improve blood flow, activate cells, and promote metabolism. Up to 5 bracelets can be shipped together. If you would like to combine shipping, please contact me through the combined order request. We will offer a discount for combined shipping only. 2 items combined: 100 yen off 3 items combined: 200 yen off 4 or more items combined: Discount up to 300 yen, so please request a change in the price. Please note that we cannot approve requests with incorrect amounts. It will be thoroughly purified and shipped in simple packaging. Thank you.