A waterkey spring to fit a Bach Stradivarius trombones.
GENUINE BACH STRADIVARIUS TROMBONE WATERKEY SPRING
Vincent Bach Stradivarius Trombone: Model 42
Bach Stradivarius Trombone Slide Bow Rubber Bumper
GENUINE BACH STRADIVARIUS CORNET / TRUMPET / FLUGEL HORN WATERKEY SPRING
Bach Stradivarius Trumpet / Cornet Waterkey Screw- Silver Plated
GENUINE BACH STRADIVARIUS WATERKEY CORK (9.5MM)
