The pendant on the simple rounded square necklace measures 1/2″x 1/2″ at its widest point. The chain length is adjustable and can be worn as a 16.5″ or 17.5″ in length. Materials: 14k gold-fill (14k gold over brass core/no nickel), 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.