A semi-open wrap gives this intermediate level bass trombone a smoother airflow and open sound.

Key Bb / F
Bore LL: 0.563"
Bell Diameter 9 1/2"
Shank Large
Leadpipe Gold brass; Fixed 
Body Material Yellow brass
Bell Material Gold brass; Pluzuma welded
Weight Standard
Finish Clear lacquer
Inner Slide Chrome-plated nickel silver; Drawn
Outer slide Brass; Drawn; One-piece
Mouthpiece 58
Features F-attachment
Rotors Single rotor; Hand lapped; Mechanical linkage