Multi-faceted Cut Terahertz Necklace Purchased from a reliable natural stone wholesaler. The stone size is 4mm, and the length is adjustable. The length is about 42cm. This is a popular item and is also listed on other sites, so there is a possibility of sudden deletion. Please consider it. There is still stock available, so if you would like multiple items, please let me know in the comments. Please be sure to check the photos carefully. I also wear this, and I feel relief from stiff shoulders and neck pain, and I am realizing its amazingness! The feeling may vary from person to person, but I highly recommend it. I also sell Terahertz bracelets. How about together? I am 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 promotion effects brought about by Terahertz waves can greatly improve our health. Furthermore, because relaxation effects and stress reduction can be expected mentally, it can be said that it is the perfect item for balancing the mind and body. Terahertz is said to emit Terahertz waves that cause about 1 trillion molecular vibrations per second. It is said that effects such as improved blood flow, cell activation, and metabolism promotion can be expected. Up to 5 items can be shipped together. If you wish to combine shipping, please contact me from the combined request. We will offer a discount only for combined shipping. 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 amount. Please note that if there is an error in the amount, we will not be able to approve it. It will be shipped in simple packaging. Thank you.