This is not a high quality file cabinet. It does not have a sliding panel to adjust for the number of files in a drawer. For some reason the pendaflex files do not easily slip onto the rails and I have to jiggle them to get them in place. I'm considering replacing the cabinet.
If you want a heavy-duty file cabinet then spend more money. This is exactly what I expected at this price point. It is constructed of very light metal but rolls nicely and holds files.
I was very disappointed with putting on the back wheels. The instructions were not clear or good. I had such a hard time putting them on. The screws didn't even go in easily. I have arthritis and it hurt my hands. Even the handles were hard to put in with the screws given. The plate for the back wheels did not line up. It was a horror.