Marcus Bonna Tenor Trombone Baby CaseBLACK LEATHER WITH YELLOW TRIM This model fits a tenor trombone with a bell size up to 8. 5 inches, with or without rotary valves. The slide is attached to the bottom with a velcro belt. On top lies the body of the trombone separated from the slide by a foam partition. This assembly allows the case to be very small and very light. There is space for accessories in a compartment inside or in the exterior detachable sheet music bag. A trombone stand can