This is your ultimate herringbone necklace including two stacking chains. The two layers cannot be separated. Beautiful gold finishes, creating a stacking and multi-layering look. This can work as an additional daily piece to your jewelry collection.Materials: 18K gold plated titaniumMeasurements: the widths of the chain are 3mm and 1mmLength: the total length of the 3mm chain is approximately 14" / 36cm; 1mm chain is approximately 15.7" / 40cm; the extension link is approximately 2" / 5cmThe product is tarnish-resistant and hypoallergenic