The Starfish bracelet is made of 925 pure sterling silver. This bracelet is great for the person who enjoys nature, sea life and the outdoors. The bracelet unhooks for easy on/off use. Sizing is best done by measuring wrist and adding 1/2-3/4 inches. Generally speaking, a size 7 is average wrist size. Free size exchang if returned unworn. Ships in a box. Oval shaped for maximum comfort on wrist.