Sterling Silver Rhodium-plated Brushed with Border 18.75 inch with 2 inch extension 20mm Oval Locket NecklaceProduct Details Material; Primary Purity 925 Finish Polished Length of Item 20. 75 in Chain Length 18. 75 in Chain Type Box Chain Width 0. 75 mm Charm Element Length 20. 5 mm Charm Element Width 26. 15 mm Clasp Connector Lobster Extender Length 2 in Feature Opens Material; Primary Sterling Silver Width of Item 26. 15 mm Product Type Jewelry Jewelry Type Necklaces Sold By Unit Each Necklace Type Necklace with Pendants Pendant Charm Type Locket