| 摘要 |
PROBLEM TO BE SOLVED: To provide a ceramic ring that can be used without giving an adverse effect to a human body, relieve pain in hands and feet in particular by a synergistic effect of far infrared rays (increasing bloodstream, insulation, or the like) and an anionic effect (activating metabolism of biological cells, or the like, and improve excessive sensitivity to cold. SOLUTION: An elastic material such as silicon rubber, or the like, is mixed with a ceramic powder and then formed into a ring.
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