I did research on many magnetic door poles to see what people said in the reviews, as well as to see what price range.  Lots of reviews  said to watch out for weak magnets that make the curtain move or slide when the door opens and closes, so then I looked for rods where the reviews said these are solid and don’t move.  Well, these Darold rods, I can certify, are rock solid!  They are just what I was looking for, and maybe the price is higher than some but you must pay for quality.  I am totally satisfied!