Key of Bb, .468" bore, 5" bell, one-piece specially tapered mouthpipe, 1st slide U-hook, reversed main tuning slide with single-radius crook, 3rd valve slide stop, Monel® valves, clear baked epoxy lacquer finish. The Holton ST307 Maynard Ferguson Professional Bb Trumpet offers the player a wide range of dynamic expression, in part by virtue of the easy high volume this horn produces. The Holton ST 307 features a .468" large bore with a 5" bell and reverse mouthpipe for outstanding resonance and centered tone. The Maynard Ferguson ST307 includes a case and mouthpiece and is available in silver finish. The newly designed full-length mouthpipe combined with the new reversed tuning slide allows the most dynamic playing freedom ever. The ST307's full high register is astonishingly easy to play, and it has a pleasing, vibrant feel with a well-centered sound. Maynard Ferguson said of the ST307, "I love the sound I get on this instrument! The upper register is as fat and big as the middle and lower, causing no thinned-out sound upstairs." Includes case and mouthpiece.