Sterling Silver One Sided Water Polo Necklace High Polished Chain with Oxidized Charm Charm Height 18 Millimeter (0.71 inch) x Width 11 Millimeter (0.43 inch) Charm Weighs Approximately 3.0 grams (4.8 grams including 18" necklace) Chain Thickness 0.7 millimeters (1/32 inches) Spring Clasp on Necklace