I bought these to keep a door open in my house that would otherwise close due to a slight bump in the house. I expected to be able to attach each adhesive side to something and use the non-adhesive side to hold the door. The magnet strength and adhesive are fine, but they're not polarized to converge on the non-clutch side, so they never hold the door. They're great if you want to stick a picture or something that looks like glue, but you can't use them together to hold something together that wouldn't otherwise have a magnet, like a wooden door or closet.
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