Well, I didn’t read the QA’s on these shelves or I would have seen that they are faux wood.   And they are hollow.  The black finish is a plastic type coating - no wood grain.  I had to change where I planned to use them as I think they look a bit on the cheap side for my family room. I would be hesitant to display anything really heavy.  I think they will be ok in a bathroom for storage of lightweight items.   I do like the mounting mechanism and the fact that all the screws and anchors are included.  Sorry to say, I would not purchase again.