AL-317B Bass Trombone

* Key: Bb/F/Gb/D

* Regular 2 Rotary Valve Model

* .562" Bore

* 9-1/2" Bell

* Handslide: Yellow Brass Drawn Outer Tubes and Chrome Plated Nickel Silver Drawn Inner Tubes

* Handslide Crook: Nickel Silver

* Finish: Lacquer

* With Wood Shell Case