Origin:  Japan

Original manufacturer Yunohana Co., Ltd. in Tokyo

Material:  Hokutolite

Size: female / male version (freely adjustable)

Width: including 6/8/10/12/15mm

Specification: One

Content (standard)One

Main components: Yunohana hokutolite, far infrared ceramic powder, negative ion ceramic powder

Product features:  The Tamagawa Hot Spring Natural Monument, "hokutolite", releases trace elements, high-level negative ion elements and far-infrared elements, reduces fatigue, facilitates metabolism, regulates physiological functions, enhances physical strength, and changes and improves one’s luck.