This chain necklace is made with real sterling silver and is stamped with the appropriate 925 metal stamp Snake style chain necklace good for wearing it alone or with pendants. The necklace's thickness is at 1.1 millimeters or 0.043 Inches. A solid and strong chain necklace making it perfect to wear with pendants or alone. This chain has a lobster clasp and has a polished finish giving it a shimy look. No bad skin reactions - Lead and Nickel free - Hypoallergenic. All our chains are made of the highest quality materials 925 Sterling Silver Rhodium Plated 1.1 Mm Snake Chain Necklace 20