I believe I bought this at a golf course about 30 years ago. Please understand that there is some aging, so only those who understand this should purchase it. The Rayma bracelet is a bracelet that became popular after being used by professional golfers. It is said to have the effect of regulating the body's ion balance and is said to help relieve stress, lower back pain, and insomnia. It is believed that wearing it can regulate the body's ion balance and promote the relief of stress, lower back pain, insomnia, etc. Wearing it on the right wrist is said to be effective for the nervous system (stress, neurasthenia, anxiety, insomnia, etc.), and wearing it on the left wrist is said to be effective for the circulatory system (heart, blood pressure, irregular menstruation, etc.). - Brand: RAyMA - Size: S - Country of manufacture: Spain Thank you for viewing.