I used four of these as replacement feet on an old Gateway Pentium III tower computer. Some of the original feet on the tower PC fell off after a bit more than two decades, and now it's good as new with these. I cleaned the case off with some rubbing alcohol, let the case dry, and for about 10 seconds I firmly pressed down on these new bumpers/feet. They seem very firmly attached, and I think they'll probably stay attached to the case for at least as long as the original feet did.
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