Sterling Silver One Sided LPN Licensed Practical Nurse Caduceus Necklace Oxidized Sterling Silver Charm Height 15 millimeters (0.59 inches) x Width 10 millimeters (0.4 inches) Charm Weighs Approximately 0.9 grams (2.6 grams including 16" necklace) Thin Box Chain Thickness 0.7 Millimeters (1/32 Inch) Spring Clasp on Necklace