The PROSTEEL Mens Necklace Chain is a stylish, hypoallergenic silver 2mm flat box chain, made from 316L stainless steel. This 20 inch-long chain is a perfect addition to any fashion-forward man's wardrobe. Its flat construction ensures a comfortable, non-irritating fit for delicate skin, making it a hypoallergenic choice for those with sensitive skin. The chain features a solid silver finish, adding a touch of elegance to any outfit, and comes complete with a gift box for gifting or storage purposes.