Shower Curtain Hooks. Made of 100% solid brass these shower curtain rings are made to last. Unlike our competition that sells cheap metal. Our shower curtain hooks are nickel-plated over solid brass. They easily clip on & off the shower rod. Measure 2 1/2 in. H x 1 3/8 in. top diameter. Set of 12 nickel-plated brass shower curtain rings.