This choker necklace has a bead chain with 3mm wide beads. The choker is adjustable up to 16 inches, and is perfect for layering, too! This collection chokers have been creatively designed with an adjustable lock that will satisfy every unique style and is available in an array of beautiful designs! Versatile adjustable chain will slide any size you want up to 22 inches for a perfect fit every time. The secret is in the slide ball at the end of the clasp. Easy to slide even while you are wearing it, but will still stay where you want it! Rhodium-plated sterling silver. ABOUT RHODIUM PLATE: Rhodium is hard-wearing, non-tarnish, and is the same metal used to plate white gold!