Chainologie Antique Copper Chain _#72: 2.25x1.75mm Tiny Flat Cable Chain (per 6 feet) Hip, tiny cable chain great for earrings, dainty necklaces, lightweight summer lariats Antique Copper for vintage-look jewelry Lead-free, nickel-free, cadmium-free soldered brass cable chain. (Brass chain is higher quality than steel or iron chain of the same design. Steel and iron chain are rarely soldered.) Uniform links measure approximately 2.25mm long x 1.75mm wide Links are somewhere between an oval and a rounded diamond in shape and made of flat wire.