Dragonfly Spirit Designs Stainless Steel Expandable Charm Bangle Wire Add Your Own Charms EXPANDABLE BANGLE glides open and closed for easy on and off MADE OF DURABLE STAINLESS STEEL, the inside diameter is approximately 2.25" before expanding TO ADD YOUR CHARMS, open the jump rings on your own charms using two needle nosed pliers. For best results, look for a youtube video that clearly shows you how to do it. JEWELER CAN DO THIS FOR YOU: If you prefer, take this bangle and your charms to a local jewelry for them to put them charms on. It's usually a nominal charge or often done as a thank you for being a customer