It's not so much a shelf as its 3 metal parts and you have to balance on the other 2 and never touch it. There is no direct connection between the 2 support brackets and the top, there are only 4 small tabs that stick out maybe 1/16" and there are slots on the "shelf" that these tabs align with, but the tiniest bump lifts you up instantly Mine was a little warped (I mean a little) so there were only 3 ledges.
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