Zebra Wire coated copper wire for wire-wrapping is available in a range of vivid colors and a wide selection of gauges and spool sizes. The colored copper wire is coated with 7 layers of colored enamel. The metallic colors of gold, silver and natural are not enameled. Gold color is made of raw brass, silver color is copper with a silver finish, natural is made of raw copper. All metallic colors are protected with a clear anti-tarnish coating.