BERRICLE Italian Rhodium Plated Sterling Silver Snake Chain Necklace 1mm METAL: rhodium plated silver, stamped 925, high polished finish, nickel free. MEASUREMENTS: CHAIN: 20 inch in length, 1mm in width, spring ring clasp STYLE: This chain necklace is ideal for layering or wearing with your choice of charms. GIFTING: Comes with FREE BERRICLE signature jewelry box and is ready for gifting.