This Shark Necklace is a replica of Shark Tooth Distillery's logo www.sharktooth.vodka.com Made in Sterling Silver .925 with rhodium alloy to prevent tarnishing. The necklace is made with 1mm solid rolo chain and is 18", with a jump ring to also wear at 16". The eye is a Blue CZ. Nau-T-Girl is a trademarked nautical jewelry line.