Sterling Silver One Sided Music Note Necklace High Polished Chain with Oxidized Charm Height 15 millimeters (0.59 inch) x Width 10 millimeters (0.4 inch) Charm Weighs Approximately 1.2 Grams (2.9 grams including 16" necklace) Chain Thickness 0.7 millimeters (1/32 inches) Spring Clasp on Necklace