This two-toned or three-color square or round densa ring set is rigid, yet extremely comfortable due to its softly rounded edges. This stack is available in several versions. The "5-stack" versions are made up of five rings including 1 thick (3mm) silver, 1 thick gold, 1 thick silver, 1 thin gold and 1 thin silver band. The "7-stack" versions are made up of seven rings including 1 thick (3mm) silver, 2 thick gold, 2 thin gold, and 2 thin silver bands. This ring set is available in sizes 5.0 – 13.0, including half sizes. Special note: Because of the width of the 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) and sterling silver (.925). All materials are hypoallergenic. This ring set was designed in San Francisco and is handmade in our Upstate New York production studio.