Trendy Men's 304 Stainless Steel Rope Chain Necklaces, with Lobster Clasps, Stainless Steel Color Size: about 4mm wide, 17.7inch(44.9cm) long. Fashionable! The necklaces are made of stainless steel and they are high-quality. Special design let the necklaces become eye-catching. Such material gives the simple style a little glamour.