These Chains Are Made With Solid 14K Yellow Gold. Miami Cuban link chains are specially known for their shine and strength. These chains have lobster locks for added securityThick 3mm Chain - Beautiful Chain For Men & LadiesSemi-Hollow ChainGenuine 14K Gold Guaranteed. Stunning Miami Cuban necklace to add to your jewelry collection. Makes an amazing gift for anyone. Add your favorite charms or wear it alone.The Pictures Do not justify the look and beauty of these Chains.Lobster Lock, So It will be very Secure on neckThe approximate weight of the chains are as follows:•16'' 4.00 Grams•18'' 4.50 Grams•20'' 4.50 Grams•22'' 5.70 GramsArrives in a Box & Velvet Gift Pouch and includes FREE SHIPPING WITH SIGNATURE REQUIRED to the USA