Sterling Silver Oxidized Denver Mile High City Charm with Thin Singapore Chain Necklace Oxidized Sterling Silver Chain with Oxidized Sterling Silver Charm Approximately 17 millimeters (0.67 inch) Diameter Charm Weighs Approximately 2.9 grams (4.9 grams including 20" necklace) Chain Thickness 1.25 millimeters Spring Clasp on Necklace