This silver and gold double square necklace is adjustable, and can be worn from 16.1/2″ to 17.1/2″. This pendant measures 11/16″ by 11/16″. Materials: 14k gold-fill (14k gold over brass core/no nickel) and sterling silver (.925). All materials are hypoallergenic. This necklace is designed in San Francisco and handmade in our Upstate New York production studio.