The B188 Stradivarius is suitable for both Wagner operas, solo work, jazz ensembles, brass quartets, and marching bands. It features a .485-inch bore and a 7-inch one-piece, hand-hammered bell for excellent resonance and projection. This instrument has the Bach sound, trombone range available to the trained valve player. Get used to the trombone mouthpiece and you've got a whole new world available to you.