Gold or silver mountain stamped adjustable cuff. One size fits most. ----- Material Note: Our cuffs are crafted from raw jeweler’s brass and sterling silver–plated brass. Because raw brass naturally interacts with each person’s unique skin chemistry, reactions can vary—some wearers will enjoy a lasting shine with no change, while others may notice a temporary green tint where the cuff touches their skin. This is a normal and harmless reaction that depends on your body’s pH.