99.99% pure terahertz necklace. ・The photos are of the actual item. ・Only the necklace will be sent. 　Props used for photography, such as the display stand, are not included. 【Size】 Overall necklace length... Approximately 45cm～ (adjustable) Beads... Approximately 3.5～4mm ※Please check each image. 【Shipping Method】 Yu-packet Post mini (planned) ※It may take more than 24 hours for the tracking number to be reflected after the shipping notification. Delivery will take several days, so please purchase with plenty of time. ーーーーーーーーーーーーーーーーーーーーーーーーー 【What is Terahertz Ore?】 When touched to ice, it shows a mysterious phenomenon as if it melts in an instant—that is "Terahertz Ore." This ore is said to emit terahertz waves that vibrate approximately 1 trillion times per second. Terahertz ore is not a natural stone, but an artificial ore made from silicon. It is characterized by being very light, making it easy to handle even for those who dislike heavy stones, and is popular as an accessory and healing item. 【What are Terahertz Waves?】 With a frequency range of approximately 1 trillion Hz to 100 trillion Hz and a wavelength range of 3μm to 1000μm, it is a very unique wave that has both the characteristics of light and radio waves. These terahertz waves have the property of penetrating matter and are said to have a "penetrating wavelength" that reaches the cellular level of humans. Therefore, it is attracting attention from a wide range of fields around the world, and research is progressing. ーーーーーーーーーーーーーーーーーーーーーーーーー Stone Words ・Terahertz… "Health Support," "Beauty," "Life" ーーーーーーーーーーーーーーーーーーーーーーーーー ※The color appearance may differ depending on the device you are using. ※Because this product is made from processed natural stone, there may be scratches, cracks, chips, dents, and inclusions (internal impurities), which are natural characteristics. Please understand this beforehand.