The Meinl Weston HoJo 4 Rotary Valve BBb Tuba was developed with the cooperation of famed jazz tubist Howard Johnson. The HoJo Rotary Valve Tuba features a smaller bore that works well for upper register work for jazz or as an instrument for the doubling bass trombonist. The HoJo BBb Rotary Valve Tuba is available in lacquer finish.