Marcus Bonna Case for Detachable Bell Jazz Trombone MB-2 - Black NylonThis model fits a small bore trombone with a bell size up to 8 inches. The slide is stored in an external case on the lid, and there is also a pocket for accessories. Additional accessories can be stored in an internal compartment. The tuning slide must be stored separately in a pouch inside the internal compartment. The small size can be a benefit while traveling with aircrafts because it fits easier in small compartments and the external slide bag