This unique trumpet delivers a powerhouse sound through its dynamically angled bell. Strategic bracing makes this horn perfect for high-energy maneuvers. The Ultimate Marching Trumpet is in the key of Bb and has a .462" bore with a 5.125" seamless bell. This trumpet also boasts nickel plated pistons, 1st slide saddle, nickel inner slide tubes, a 3C mouthpiece, and a heavy-duty stackable case.