Sterling Silver 2.3mm Solid Rope Chain Necklace - 20 Inch - 7.4 Grams in Sterling Silver - Width of Item: 2.3 mm - Length of Item: 20 in - Chain Length: 20 in - Chain Width: 2.3 mm - Clasp /Connector: Lobster - Finish: Polished - Chain Thickness: 2.1 mm - Chain Type: Rope - Feature: Solid - Clasp Width (Male end): 3.9 mm - Clasp Width (Female end): 2.8 mm - All of our jewelry for women and men are authenticated with a 10K or 14K hallmark and are tested to pass FTC regulations.