This is a lightweight case for an F contrabass trombone with screw bell. Its fairly universal fit if there were such a thing. It should fit Thein, Kanstul, K&H, Haag, Jurgen Voigt and others.
A contrabass trombone with a detachable bell flare packs much smaller, and this looks more like a bari sax case than a trombone case.
Fiberglass shell, nylon or leather outer cover, removable sheet music pocket, backpack straps, small accessories. In your choice of single or two-tone colors, made to order in 90 days.