These are wonderful semi-privacy screens for my windows. I attached mine using Self Adhesive Hanging Nails ( 0.3 inches) which fit the holes, perfectly. I love that I could cut these to customize the width, using scissors. 
Attaching the included hang-rings was easy once I noticed there is a semiglossy side and a matt side. They are thin and light weight, they lay flat against the window, hanging beautifully.  I can raise/lower and open/close the blinds, no problem. Nothing touches the blind.
Since the Self Adhesive Nails attach with a small screw and nut, it will be easy to take them down and put them back up when it’s time to wash the windows.
I love this privacy solution rather than cling film. Thanks Wayfare for offering a truely unique and useful item.