Sterling Silver Drum Set Necklace Polished Silver Chain with Oxidized Charm Approximately 21 mm x 18 mm (0.83 inches x 0.71 inch) Charm Weighs Approximately 3.2 grams (4.9 grams including 16" necklace) Thin Box Chain Thickness 0.7 Millimeters (1/32 Inch) Spring Clasp on Necklace