This 5-stack short mixed shape densa ring set is rigid, yet extremely comfortable due to its softly rounded edges. This stack is made up of five rings including 1 thin silver round, 1 thick (3mm) silver or oxidized silver round, 1 thick yellow gold square, 1 thick rose gold round, and 1 two-toned silver and yellow gold square bands. This ring is available in sizes 5.0 - 9.5, including half sizes. Special note: Because of the width of our stack ring sets, 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 brass core/no nickel), sterling silver (.925), and oxidized 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 ring set is designed in San Francisco and handmade in our Upstate New York production studio.