30 Yards Diameter: - 0.405mm / Length: - 27.43m Soft Flex Craft Wire is a high quality, permanently colored copper wire. It is resistant to scratching, peeling and marring. This is due to the special enameling process used to coat the wire. After the enamel is applied, the wire is then clear coated to prevent tarnishing. Soft Flex Craft Wire is 100% lead and nickel free. There are no other metals used in the wire production other than copper and fine silver. The temper of the wire is soft. An exceptional design idea deserves a professional craft wire.