1 ремень для крепления простыней, зажим для простыней, эластичный ремень для крепления простыней с регулируемыми функциями

Haven't used it yet, but it looks good quality. Thick, sturdy elastic, nice clips. Let's see, it seems like everything will be fine.

Functional straps. The workmanship is ok.
The length of the strap can be extended up to 200 cm, but unfortunately, no further. (and that's the only downside).
But it doesn't matter if you have a mattress up to 200 cm.
I can wholeheartedly recommend it.
100%

these are better than the ones that only do the corners have kept the sheet perfectly in place

It holds the sheet very effectively - after the night it looks like it has just been made. I am very glad that I came across this product