Cerveny CBB 683-4PXR Bb-Tuba Arion - 4x rotor valves, minibal joints, nickel silver mouthpipe, nickel silver inner and outerslides, nickelsilver bell rim, 20.2mm bore, 400mm diameter bell, includes silver plated mouthpiece and case. Length: 83cm. Weight: 8.2kg. Finish: Brass Lacquer