This pure & authentic nickel-free .925 sterling silver 4.1mm thick boxed Byzantine chain necklace is made in Italy with superior craftsmanship. This chain is a true classic that will make an excellent gift for males of all ages & sizes (boys, teens, and men) or women who are looking for the the look of a bold chain. The chain is secured with a sturdy lobster clasp and offered in a variety of lengths allowing you to personalize to your desired fit (please refer to size reference chart photo to help you make your selection). Each chain ships with a lifetime warranty & authenticity guarantee card as well as a microfiber jewelry polishing cloth to help clean, shine, and protect your sterling silver jewelry.