This 18K yellow gold box chain offers luminously polished facets and a silky smooth look. At a 0.6 mm thickness this chain is available in an 16, 18 and 20 inch length. Perfect for pendants and can also be worn alone. Includes a lobster clasp to uphold strength and comfort. - This chain is made with real 18k yellow gold and is stamped with the appropriate 18k stamp. It will not tarnish or change color as it is real gold. - Box style gold chain necklace good for wearing it alone or with pendants. - The necklace's thickness is at 0.6 millimeters or 0.023 Inches. A thin and lightweight chain necklace making it a delicate piece of jewelry. - Necklace has a lobster clasp and has a high polished finish that gives it a shiny look. - Necklace Comes In a Gift Box