This gorgeous 16" Box Chain comes in 10K Yellow gold and has a width of .65mm. Average weight is 1.3 grams. Comes with a lobster claw clasp which is considered to be the most secure type of clasp. Our box chains can be worn by men, women and children. Box chains feature a single link format very much like a cable chain. Each link is a flattened sheet of metal bent into a square. The interlocking squares form an exceptionally strong chain because each link is so sturdy.