The Meinl Weston 25 4/4 4 Rotary Valve BBb Tuba is a full sized instrument offering the rich resonant sound quality that is perfect for larger ensembles. The 25 features a .768 inch bore for a full sound with an even response and superior intonation. The 17.75 inch upright bell provides excellent resonance and projection. Quality German construction makes this one of the finest BBb tubas available. The Meinl Weston 25 4/4 4 Rotary Valve BBb Tuba is available in lacquer finish. Case NOT included.