The Meinl Weston HoJo 4 Front Action Piston Valve BBb Tuba was developed with the cooperation of famed jazz tubist Howard Johnson. The HoJo Piston 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 Front Action Piston Valve Tuba is available in lacquer finish.