This version is updated. Please use this instead: https://www.prusaprinters.org/prints/27855-updated-12mm-x-8-shields-with-ladder-locks-for-8mm
This is for PETG. All print settings are included in the 3mf file. You need 8mm elastic fabric (thicker ones will not fit). Check the photo for a sure way to loop the fabric around the ladder lock. It does not require a hole in the fabric, and is easily adjustable.
The author remixed this model.