One of our most versatile pieces, this instant classic herringbon chain is the perfect addition to any necklace collection. Worn on its own or in a stack, our Python 3mm Necklace is the jewelry lover's must-have. 18kt Gold Filled Herringbone Chain 3mm thick As seen on @sweetteawithmadi Madi Messer in 16" & 18" (16" 1st photo, 18" 2nd photo)