Lacquered Yellow Brass Body, .562 inch Bore, 9.5 inch Bell, Double Dependent Rotor, Bb/F/Eb and D, Open Wrap, Three Interchangeable Leadpipes, offset mechanical link rotary valves, brass outer slide with nickel-silver crook, chromed inner slides, includes JBM-15L mouthpiece and XO Classic Series case (KC-48XC)