Detroit locker

Well, I don't know if it's for an 8 3/4. That's what I want to be sure of. You see, when I bought this, we (my ex-wife and I) started to have some issues, which led to a divorce. I completely forgot about it with all that crap going on. Now I am trying to find out if it's really for an 8 3/4. Just want to be sure it's what it's supposed to be.