AUOQZ 4-delige lakenhouder met slotstrips, matras beddengoed, lakbevestigingsmiddelen, klemmen, hoeslaken hoekhouders om hoeslakens op hun plaats te houden (wit)

I'm going to have to go against what other reviewers have said on here. I was sceptical when I saw these devices in the packet. They were a bit of a hassle actually getting them to fit, but my fitted bottom sheet isn't popping out from the mattress any more. So for me, they work.I find that fitted sheets tend to pop up from the top of the bed and work their way down during the night. I'm not sure if this is something to do with the way that I sleep and move around, or something else. Making sure that the sheet is well tucked under at the top doesn't seem to help.When I looked at these devices I wasn't sure how well they would work. They looked to me like they could also pop up and out from under the mattress. However, that proved not to be the case.I will say that they were a bit of a faff trying to get them to fit. The plastic corners fit under the corner of the mattress and the fitted sheet goes over the top. You then have to thread a thin piece of plastic through a channel on the plastic corner to anchor the sheet in place. This is what caused the frustration. The solution was to use my finger to poke the material down ahead of the plastic strip as I was threading it through.For me, these have worked remarkably well. A week on and the sheet has not come loose once. I think that when the bed linen is washed and replaced it will be easier to fit now I have the knack. Compared with other solutions I've tried using clips and elasticated strips, these are much more effective. I'm sorry to see they haven't worked for others. For me they've been great.

Item is very small compared to photo illustrations. Yes it does have size in one picture. But very misleading.