Might be better options out there

They do work... mostly. They have held my sheets down from coming off the corners in the night for a few weeks, but it seems like the elasticity has worn off a bit, and it seems that the clamp isn't clamping as well anymore. Especially on one of them. Fortunately, there are 8 included in this pack so I will have to swap it out and see if there is any improvement. Ok otherwise. Update: I'm actually not even using these anymore. They're just more of a hassle to put on than it is to pull the sheet down every night before bed.

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