This jewelry extender chain is crafted from solid 18k gold, not plated. It is nickel-free, lead-free, hypoallergenic, and features a highly polished shiny surface, ideal for sensitive skin and won't cause skin discoloration. Each piece is stamped 18k G18k Au750 for metal purity. The durable yet delicate chain extends necklaces, chokers, bracelets, or anklets. Available lengths are 1inch, 2inch, 3inch, 4inch, 5inch, and 6inch. It includes a secure lobster clasp for easy attachment and removal. Note the extension chain is small but strong, sold separately, and not suitable for very thick chains. Perfect for year-round wear, it comes packaged in an exquisite jewelry box, ready for gifting. Review the style and length carefully before purchase.