Men's Sterling Silver Rhodium Plated Lightweight Round Box 2.4mm 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 2.4mm thick and comes in: 24in - weight 6.6g; 26in- weight 7.2g; 28in- weight 7.7g; 30in- weight 8.3g; 34in - weight 9.6g. For best results, we do strongly recommend using a tape measure to check neck size before placing your order. Rhodium plated to prevent tarnishing