ltem description from the seller
Material: Primary - Purity:925 Finish:Polished Length of Item:20 in Chain Length:20 in Chain Type:Box Chain Width:2.6 mm Clasp /Connector:Lobster Clasp Thickness (Female end):2.55 mm Clasp Thickness (Male end):2.32 mm Clasp Width (Female end):2.5 mm Clasp Width (Male end):3.8 mm Coating:Anti-tarnish Feature:Solid Manufacturing Process:Machine Made Material: Primary:Sterling Silver Width of Item:2.6 mm Product Type:Jewelry Jewelry Type:Necklaces Sold By Unit:Each Necklace Type:Chain Styles Gender:Women's Profile Type:Round Material: Primary - Color:White