This traditional box chain necklace is styled in 925 sterling silver with rhodium finish. It secures with a lobster clasp. This necklace is nickel and lead-free. It is waterproof, so do your daily routine without having to take it off. You can shower with them or take a swim. We have necklace from 16-inch to 38-inch long and 1. 2mm wide available. *** Rhodium finsh is tarnish-free & hypoallergenic. It does not flake off, lose luster or change color for years. This necklace is also available with 18K white gold finish for customers who prefers a fully-white looking. *** Free velvet gift pouch included.