These are good basic bed sheet fasteners for the money. So far they are holding fine. They were a little tight to put on with a normal thicknes fitted sheet fabric but did hook ok. Take a look at https://www.amazon.com/gp/product/B0759RFQVR/ref=ppx_yo_dt_b_asin_title_o02_s00?ie=UTF8&psc=1
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