Brass Chain Extender, with Chain and Lobster Claw Clasps, Nickel Free, Real 14K Gold PlatedSize: about 2.80 inch(71mm) long, clasp: 0.39x0.24x0.10 inch(10x6x2.5mmm)m, chain: 1.97 inch(50mm), jump ring: 0.20x0.04 inch(5x1mm), 0.12 inch(3mm) inner diameter.