Black nylon
Take your Bass Trombone with you easily with the Marcus Bonna Bass Trombone Case. The Marcus Bonna Case offers protection and versatility, with velcro padding on the inside that can be adjusted to fit the valve combination you have on your Bass Trombone.
The Marcus Bonna Bass Trombone Case is designed for 9.5"-10" bell and can also be used for large tenor trombones. Since it doesn't hold a mute like the MBT, it's a shorter case.