This model fits a detachable bell tenor trombone with bell size up to 9 inches and a detachable bell jazz trombone with bell size up to 8 inches. You can also fit an alto trombone with or without rotary in place of the jazz trombone.
The case made entirely of fiberglass and nylon weighs around 3.8 kg.
It has a partition made of a very protective material in between the trombones and has a partition between the trombone and the slide fixed on the lid. The velcro belt system guaranties that the slide is safely protected by the hard shell (fiber glass or carbon fiber).
It has a detachable zipper system to attach the bag for sheet music, laptop, tablet and other accessories.
MB case's models have a system that is adaptable for different types of trombone. The EVA parts and cushions have velcro, so they can be adapted in order to fit most of instruments sizes properly.

The case includes:
  • 2 backpack straps
  • 1 shoulder strap
  • 1 mouthpiece pouch for 2 mouthpieces
  • 1 pouch for 2 leadpipes
  • 1 identification tag