Key of Bb. .571" bore, and 11" upright bell. Gold brass receiver, 3 nickel-plated alloy pistons, lacquer finish. Convertible model with case and concert and marching lead pipes included.Yamaha marching band instruments are among the most respected instruments in the world. For solid value, engineering excellence, and reliability, Yamaha is second to none. Premium features such as honed valves for zero air leakage, perfectly round pressure-formed tubing for smoother air flow and excellent scale, plus laser-fused pluzuma welded bells for continuous even vibration make these horns great sounding, supremely easy to play, and very durable. All Yamaha wind instruments come with a limited 5-year warranty.

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