This silvertone adjustable bangle bracelet is approximately 7-1/2 inches (19.1cm) but can be made a bit smaller and larger. It has an inside diameter of approximately 65mm. These are wonderful add-a-charm bangles for an easy jewelry project. See our last photo for a bracelet that we made using our Adinkra Charms (Adinkra charms are not included). Buy more and save! Our bangles are made of an iron alloy so they are slightly magnetic. This makes a super easy jewelry project using your own charms or ours!