This four-color interlocking bangle is composed of 1 thick yellow gold, 1 thick silver, 1 thick rose gold, and 1 thick oxidized silver bangle. Bangle sets come in size Small (2.1/2″ diameter), Medium (2.3/4″ diameter), or Large (3.0″ diameter), though size Medium fits most wrists. Materials: sterling silver (.925) and 14k gold-fill (14k gold over brass core/no nickel). All materials are hypoallergenic. These bangles are handmade in our California and New York production studios.