Sterling Silver Double Tennis Rackets with Ball Necklace Oxidized Sterling Silver Charm Height 19 millimeters (0.75 inch) x Width 12 millimeters (0.47 inches) Charm Weighs Approximately 1.5 grams (3.2 grams including 16" necklace) High Polished Box Chain Thickness Approximately 0.7 millimeters (1/32 inch)Thickness Spring Clasp on Necklace