Sterling Silver One Sided Eighth Note Necklace High Polished Chain with Oxidized Charm Approximately 13 mm x 13 mm (0.51 inch x 0.51 inch) Charm Weighs Approximately 1.6 grams (3.3 grams including 16" necklace) Chain Thickness 0.7 millimeters (1/32 inches) Spring Clasp on Necklace