Key of Bb, bell front, .512" bore, 10" yellow brass bell, rose brass lead pipe, stainless steel pistons with plastic valve guides, nickel silver tuning slide, concave finger buttons. Size 12 small shank mouthpiece. MBHRMB202S - Same features as above in a silver-plated version. Includes: polishing cloth, pair of white marching gloves and Ravel lightweight case with backpack straps.