Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Manufacturing defects plague this holder

I've used other magnetic knife bars before and have NEVER had this problem.I ordered 3 of the RSVP 10" magnetic knife holders. On all three of them, there were severe manufacturing defects that prevent the four magnetic bars from lining up with one another. If the bars don't line up, the knife isn't supported well on the wall, often only held by 2 of the bars instead of four. This results in the knife being barely held to the wall.I hoped that it was a problem with just one or two of them, so I ordered three total. All of them were bad, some of them were worse than others.Terrible knife bar. I suggest a different model!I'm returning mine...