[Function] The back of the bracelet brings together 5 health elements with different functions. For other single-magnet bracelets, it can more comprehensively stimulate the phagocytic ability of macrophages in the body, improve human immunity and shoulder pain relief [[Science] magnetic energy can improve local blood circulation and tissue nutrition, accelerate the absorption of inflammatory exudates, reduce the excitability of peripheral nerves, increase the body's pain threshold, and promote the decomposition and transformation of pain-causing substances; It has a significant analgesic effect. [[Adjustable Size] With a freely adjustable size tool, and includes instructions. Chain links can be removed/added to fit your wrist perfectly [[Elegant Gift] This men's magnetic bracelet is packaged in a gift box , concoction size tool and instruction manual. - Perfect for an anniversary or special holiday for husbands,parents