This is a basic 4/4 violin case which might suit a child in terms of quality and surviving knocks in the playground. You wouldn't want to put an expensive instrument in it but it is otherwise fine and economical for kids
The fit is quite tight - it is for a 4/4 violin and it is big enough but the inner space for the violin itself is quite tight. It might adjust with use but needs a bit of careful maneuvering for now.
The main problem, quite serious for my intended use as an adult, is the tightness of the shoulder straps. These are fine for a child but will not go over an adult's shoulders unless you are wearing a t-shirt, certainly no way over a jacket, even with the straps fully loosened. The flaw is that the both ends of each strap are sewn into the back of the case. They are not detacheable and so cannot be replaced with longer straps.
I am sure Thomanns would replace it but I don't want to fuss with that at the moment. I will try to alter it in some way, perhaps add metal rings on the back to take longer straps.
Overall then, a good case for children but the fit is not workable for adults.