Reinforced low D, C, B, and Bb tone holes
Trussed low B and Bb linkage
Rod-end spring tensioners
Left thumb hi-d vent & hi-c connector
Rollers on left thumb vent keys
Right thumb alternate Eb
Traditional rollers between E♭-D♭, F-A♭, C-D#
Rollers on right thumb F# and B♭
Wrap-around low Bb key #1 and #2 silver-plated bocals
Available in mahogany brown with silver-plated keywork