Smaller gold shell necklace is 16” with a 2.5” extender Bigger shell pendant necklace is 16.5” with a 3” extender Gold shell pendant is 2.5” by 2” Same day / next day shipping 5 ⭐️ Seller Nwot Zara necklace choker jewelry shell pendant gold boho beach vacation statement chain link sea ocean double layer multi 2 layered