925 Sterling Silver Chain Extenders, with Lobster Claw Clasps & Charms, Heart, Antique GoldenSize: about 0.10 inch(2.5mm) wide, 2.40 inch(61mm) long, clasps: 0.37x0.20x0.10 inch(9.5x5x2.5mm), hole: 0.09 inch(2.4mm), jump ring: 0.16x0.03 inch(4x0.8mm), charm: 0.24x0.16x0.10 inch(6x4x2.5mm).