5/8" diameter, these metal discs have an Archaeological Revival vibe, but they're not explicitly so. The inexpensive construction and material make me think of fast fashion. Think about jewelry you'd buy at H&M (AS IF YOU WOULD!!!). Their designers do a watered-down version of current trends. Nothing too over-the-top, but referencing street styles. Safe. This is the 1870's equivalent. Silver colored hooks (but not actually silver).