Sterling Silver One Sided Bass Guitar Necklace High Polished Chain with Oxidized Charm Height 23 millimeters (0.91 inch) x Width 10 millimeters (0.4 inch) Charm Weighs Approximately 2.8 grams (4.5 grams including 16" necklace) Chain Thickness 0.7 millimeters (1/32 inches) Spring Clasp on Necklace