This is the Dive Flag Earrings Scuba Charm Hook Style Surgical Steel Ear Wires Features: Dive flag charms are tarnish-free Rhodium-plated bronze Attractive, durable chip inlay dive flag design Eco-friendly chip inlays are simulated red coral & mother of pearl Flag dimensions: width 11/16, height 7/16", thickness 1/16" Ear wires are hypo-allergenic, surgical steel Rhodium is a rare, silver to white metal that belongs to the Platinum group of metals. It is about 10 times more costly than gold, but because it is a "noble metal" and inert, it will not tarnish and makes jewelry more durable. Use of simulated inlay in Dive Flag Jewelry protects our reefs! "