The KATE NECKLACE features adjustable lengths of 13.58" plus a 2.36" extension or 16.54" plus a 1.97" extension, allowing for versatile styling. Crafted with 18K gold and silver plating, it is both non-tarnish and waterproof for lasting wear. To keep its shine, avoid contact with soaps, perfumes, lotions, and cleaning products, and remove before applying body products. Clean gently with a lint-free microfiber cloth to maintain its elegant finish.