This is the Marcus Bonna oboe/English horn ‘connected’ double case that doublers are talking about.
The Bonna single oboe case and single English horn case can be used separately, or securely zipped together. Take one or the other, or both! The very handy, fully-zippered music folio can be zipped on to the English horn case, or carried separately.
To add to the convenience, it comes with backpack straps and rings. Beauty and rugged functionality are combined in this professional integral case.
The English horn case measures 19″ x 8 1/2″ x 4 1/2″. The oboe case measures 13″ x 7″ x 3 1/2″. The music folio/pouch measures 16″ x 10″ x 1″. All put together, the total overall dimensions are 19″ x 10″ x 9″. Made in Brazil by Marcus Bonna