So, same design as the Collector's Box - which is not provisional . . . will of course go great with all the other 'Big A' steelbook designs for previous "Avengers" films-
... and speaking about provisional artwork staying the course who can forget the EASTRAIL TRILOGY?!
They use a flattish cardboard box. I try to order 2 steels at a time so it's a snug fit. A single steel will slide around and I understand their customer service is crappy (and so is my French ).