B&S Elaboration Bb Trumpet

The 3138 Challenger II Elaboration offers the professional level player a unique instrument designed for excellent all round performance with a quick response.

- Special elaboration surface treatment. A matt pre aged style finish.
- 3138/2-E light weight 4.9 inch one-piece hand hammered #37 bell
- 3178/2-E 4.9 inch one-piece hand hammered #72 bell
- Boxed bronze springs
- Challenger Monel pistons
- Nickel silver outer slides
- Stopper at the 3rd valve slide
- Bore: 11.66 mm ML