SanThree Pure Titanium Necklace for Men 3mm Square Rolo Chain, Durable Skin Friendly Solid Titanium Round Link Box Chain for Women Gift, 19.68 Inches | Amazon.com
Franco Square Box Chain Necklace Stainless Steel Jewelry For Men Women 5mm 24'' | eBay
Men's Sterling Silver Necklace – Rellery
Elongated Box Chain Necklace in Sterling Silver, 6mm | David Yurman