Our Light, Gold and Dark Rum Punch set is made up of 3 rings including 1 thick gold round, 1 thick silver round and 1 thick 5mm oxidized square. Special note: Because of the width of this stack ring set, it is recommended to buy a stack that is approximately a half to a full size larger than your normal ring size. Materials: 14k gold-fill (14k gold over a brass core/no nickel), sterling silver (.925), andoxidized silver. All materials are hypoallergenic. The black (oxidized) components of our jewelry will wear over time and eventually achieve a beautiful antique-like finish. This original stack creation was featured during the Ring Bar Happy Houron IG Stories, and is handmade in our Upstate New York production studio.