Just dont. When I got my shelves I couldnt get the nuts off of the wheels after my husband father in law and myself tried. The box itself had no issues while the metal inside was bent. I managed to get it together even though I had to force it. I finally got it together when I saw the edge had popped out and the weld was rusted. The tools they sent us had mold on them. When I asked for replacement parts so I could actually use it, they said they shipped them but I have yet to receive any.