This 3 valves SOUSAPHONE is a full BRASS Sousaphone for those who prefer the sound superiority and might of a brass instrument. This is a very powerful 3 piston valve sousaphone that will hold its sound under all volumes. The sousaphone is built to last and has superb projection and response. It features a .750 bore and a 26-inch bell. Comes complete with mouthpiece and deluxe lightweight case.