Chain length:  Opal Fish Sterling Silver Necklace 16 in Extension chain length: 2 in Weight: 0.08 oz (2.3 g) Expertly crafted from 925 fine silver,Opal Fish Sterling Silver Necklace this Opal Fish Sterling Silver Necklace features a delicate 16 inch chain with a 2 inch extension that allows for a customizable fit. Opal Fish Sterling Silver Necklace With a weight of 0.08 oz (2.3 g),Opal Fish Sterling Silver Necklace this necklace is light enough for comfortable, everyday wear. Opal Fish Sterling Silver Necklace