Women's Stainless Steel Chain Necklace. Premium 5mm Stainless Steel 18k Gold IP Plating Mariner Chain Necklace. Gold IP Plating is More Durable and Resistant to Wear and Tarnish than Traditional Gold Plating Methods, Making it Ideal for Items that are Worn Daily. Hypoallergenic, Corrosion-Resistant, and Safe for Sensitive Skin. Steel Plate Tag and Lobster Clasp Closure.