This traditional 18K Rose Gold Filled Flat snake chain necklace is 23.6 inches long and 4 mm wide. / Nickel-free, Lead-free, Tarnish-Resistant / Hypoallergenic / Waterproof, shower with them or take a swim We have 16/18/20/22/23.6 inches in stock for this model.*** Free Velvet Gift Pouch Included.