This elegant choker from our signature O Collection is great to pair with other necklaces from this collection. Our patented connectors let you easily link and layer necklaces in any order you desire. .925 Sterling Silver Chain Thickness 1.5mm Cubic Zirconia Diameter: 0.2in (5mm) Adjustable chain: 15-18in (38-45cm) Spring clasp closure Hypoallergenic, lead and nickel free #040S