
Place them on a painted wall and tile and they'll hold up to moderate loads (maybe a pound or so or so) very well. Be sure to press firmly when installing. It says 60 seconds, which I think probably doesn't matter / is more than enough - as far as I know the initial pressure should be as high as you can handle, but you don't need to press that long. I did my best for just a few seconds leaning on them with all my weight and they hold up very well. Good value for money!

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