This is in used wearable condition. I did put some pictures with it on the sizing tool, but it is one of those adjustable styles as well so it could be expanded if you want. This is magnetic, so it is not any kind of precious metal that I know of anyway. It is not extremely magnetic, but it will stick. This is quite a unique and rare find. Not many of these out there available whatsoever. See pictures for condition details as they are part of the description. As is. All sales are final. Thanks for looking.