Sterling Silver Flat One Sided Chick Duck Necklace High Polished Chain with Oxidized Charm Height 16 millimeters (0.63 inch) x Width 17 millimeters (0.67 inch) Charm Weighs Approximately 1.3 grams (3.1 grams including 18" necklace) Chain Thickness 0.7 millimeters (1/32 inches) Spring Clasp on Necklace