This bright-finish solid copper bracelet has been fitted with rare-earth magnets and is available in two wrist sizes. They have a bit of flexibility, and can be [carefully] shaped to your wrist.
CBM096 - Inside circumference [including the opening]: 6 3/4 inches
CBM097 - Inside circumference [including the opening]: 7 1/4 inches
Each is about 5/16 of an inch wide measured left edge to right edge as shown.