Men's Sterling Silver Rhodium Plated Lightweight Round Box 3.5mm Chain Necklace This necklace is made entirely of sterling silver and stamped "925." This classic necklace looks great alone or with your favorite pendant. Chain is 3.5mm thick and comes in: 24in - weight 12.9g; 26in- weight 13.9g; 28in- weight 15.1g; 30in- weight 16.1g; 34in - weight 18.2g or 8.5in (bracelet)- weight 4.9g. For best results, we do strongly recommend using a tape measure to check neck size before placing your order. Rhodium plated to prevent tarnishing