Taiwan-made, High-Purity Hokutolite Bracelet 12mm Measured for negative ions and radiation We also carry a wide selection of radium products, including Bad Gastein stone and Himekawa Yakuseki. *Each piece is carefully crafted by professional artisans. *Made with strong Mobilon rubber (thick single rubber type). Please let us know if you prefer Operon rubber (type with thin rubber strands bundled together). 【Specifications】 Bead size: Approximately 12mm Inner diameter: Approximately 17.5cm (±5mm) *Size adjustments are available. We will re-estimate the price depending on the size, so please let us know in the comment section. There will be no price reduction for size decreases. 【Radiation Level】 Approximately 40μsv (The radiation level is not constant due to the natural mineral, please understand.) *This yellow-gray type is a high-purity version. It detects about 5 times the negative ion value compared to the commonly available white type. 【Taiwan-made Hokutolite】 A precious stone found only in two locations: Beitou Hot Spring in Taiwan and Tamagawa Hot Spring in Akita Prefecture, Japan. In Japan, it was designated as a natural monument in 1922 and a special natural monument in 1952, and mining is currently prohibited. This product is Hokutolite purchased from a Taiwanese vendor who has a factory that processes the raw stone. It is said to be effective for promoting health by emitting radiation due to its radium content. Hokutolite is said to be a "doctor-free" stone, good for health due to the hormesis effect, and is often featured in the media for generating negative ions. Hokutolite commonly available as round beads is processed with Hokutolite powder/small pieces using ceramics, but this does not affect the stone's effectiveness. *Notes before purchase* *We try to photograph the colors as close to the actual product as possible, but the colors may appear different depending on your monitor or smartphone. Please understand. --------------------------------------------- #NaturalstoneKoboHokutolite Click here for a list of other Hokutolite products we have for sale ---------------------------------------------