This round stack has five rings: 1 thick silver, 1 thin silver and 2 thin rose gold band and 1 two-toned. This ring is available in sizes 5.0 – 11.5, including all half sizes. Special note: because of the wideness of the stack rings, it is recommended to buy a stack that is 1/2 size larger than your “normal” ring size. Materials: sterling silver (.925), and 14k rose gold-fill (14k rose gold over a brass core/no nickel). All materials are hypoallergenic. This ring is handmade in our California and New York production studios.