The Robert Tucci RT-24+ features a comfortable rim, and large bore for maximum air flow and projection. Bob Tucci categorizes the 24+ as an "all-purpose" mouthpiece that works well with F, Eb, and BBb tubas. The heavy weight design creates a focused and clear sound. The RT-24+ rounded rim helps the player's endurance.
The RT-24+ has a small RT shank.
Inner Diameter: 31.7mm/1.25in
Cup: Moderately deep and well rounded at the bottom
Rim Width: 8.4mm/0.33in
Rim Contour: Comfortable round inner and outer edge