Besson BE111-2-0 - Bb Intermediate Silver Plated Trumpet Outfit This trumpet is a "step-up" model. It has been designed to give a nice powerful bright sound. The reversed lead pipe makes the instrument easy to blow, while providing excellent sound projection and tuning. This trumpet has a one piece bell, a little lighter than the two-piece bell, giving greater projection. Bb, bore .460" (11.68mm), "1 piece" hand-made bell in yellow brass. (123mm), 3 valves with a top sprung action, nickel-silver slides, reversed leadpipe, lacquer - outfit