This 3mm silver and gold square bangle bracelet is offered in three sizes: Small (2.1/2″ diameter), medium (2.3/4" diameter), and large (3" diameter). A size medium will fit most wrists. Materials: 14k gold-fill (14k gold over brass core/no nickel) and sterling silver (.925). All materials are hypoallergenic. This bangle bracelet is designed in San Francisco and handmade in our Upstate New York production studio.