Cerveny CBB 883-5PZX II Opera Bb-Tuba, rotor- valves:4+1, very compact, MINIBAL- joints, nickel- silver mouthpipe, nickel- silver inner- and outerslides, nickel- silver bell rim, Remonteur- machine, free mouthpipe, 3 changeable mouthpipes in brass, gold- brass and nickel- silver, brass body, gold brass bell, lacquered, bore: 20,2mm, bell: Ø360mm, length: 83cm, weight: 8,6kg, incl. silver plated mouthpiece and case.