Hammered Ring Hook EarringsHammered Ring Hook Earrings Like all our jewellery findings, our hook earrings are cast in brass (not nickel and plated in matte silver and matte gold. (All plating is 0. 5 1micron thickness) These catch back hook earrings simply feature a hammered hoop. Styles: Silver hammered ring + catch back hook Gold hammered ring + catch back hook Size: Total drop 58mm Hammered ring 24mm