Cup Diameter: 32.00 mm, Medium depth and well rounded at bottom
Rim: 10.00 mm, Moderately wide cushion rim
Bore: 8.50 mm
Resistance: Comfortable
Shank: (S) American

Rim design is new. The throat and shank bores are calibrated for depth of tone and high volume. Optimized for solid sound with good projection and accurate response in all registers. Very comfortable and ideal for young players.Excellent general purpose mouthpieces for CC and BBb tubas. Standard Heavy Shell configuration.