Women's Copper Bangle Bracelet CBB515 - 5/16 of an inch wide.
Available in a 7 to 7 1/2 inch wrist size which is 68mm inside diameter or 2.68 inches. That is the size for women with an average wrist or a size medium.
Also available in a 7 3/4 to 8 1/2 inch wrist size which is 72mm inside diameter or 2.87 inches. That is the size for women with a bigger wrist or a size large.