Finding inner wells?

I think thats what there called?
Behind my front wheels, they would appear to have a bolt that goes to the fender to hold them on.
I can see straight through to my door hinges. I need those plastic or metal pieces that go there. I guess their inner wells? Correct me please if I am calling them the wrong thing. I don't know if this photo is good enough to show what mine is missing on both sides.