Status Men's Cuff Links U.S. Navy 64.5% Copper, 33.7% Zinc, 1.77% Tin, .03% Rhodium Plating Made in US Hand Wash Crafted in the U.S.A. Rhodium is a silvery-white metal and the world's most expensive precious metal rhodium has an extremely bright and hard wearing finish when used as plating 80 percentage of the world's rhodium comes from south africa world production is about 20 tons per year. Gift box