Steel tube with solid brass sleeve cover Inner tube: Steel Outer tube: solid brass 63/37 Available also with different finishings: polished and clear-lacquered, chome-plated, nickel-plated, nickel-matt, browned, circular and lenghtwise brush Diameters between 9 and 40mm Material strenghts: 0,8mm Lengths: up to 5000mm Same premium surface as full brass tubes, but with a considerable price advantage