Men's Stainless Steel Chain Necklace. Premium 6.5mm Stainless Steel 20 inch Herringbone Chain Necklace for Men Featuring Classic Silver Steel Color. Waterproof and Corrosion-Resistant, Making it Ideal for Items that are Worn Daily. Stainless Steel Plate Tag and Heavy Duty Lobster Clasp Closure. Hypoallergenic and Safe for Sensitive Skin.