This original drawing comes in a black box frame, without glass.
It is ready to hang on your wall, straight out of the box.
The pastel has been fixed and is fairly stable, but the piece will remain somewhat vulnerable to direct touch on its surface. It can be dusted by blowing some air over it, and plumeau's won't harm it as long as they don't touch it physically. If it is to be hung in an environment with kitchen fumes, smoke or the like, I would reframe it behind Clarity glass.