18k Gold Filled 2mm Flat Mariner Chain  This 18k Gold-Filled Flat Mariner Chain is a timeless classic with a trendy, minimalist look. The 2mm width gives the chain a subtle, yet elegant touch.  * Metal : 18k Gold Filled * 2mm wide  * Available sizes: 16, 18, 20, 22 and 24 inches. * Hypoallergenic jewelry - Nickel Free * Water-resistant * Rigorously manufactured under CA Prop 65 and EU standards * Handcrafted in Brazil.