Holder/Clip safety pool tarp handrail

In our pool, the safety tarp with zipper is hooked into the handrail. Unfortunately, it falls out again easily when the tarp is not hooked in or you want to close the zipper.

The clips keeps the tarp in the handrail and you can close it much better.

PLA didn't work very well outside and the holders were bent after a while. This does not happen with PETG until now.

The clip is about 2cm wide. Fits the hand rail in the picture (strengthened version).