Niviy Window Film Non Adhesive Static Cling Film Etched Privacy Film for Home Window Decor, 17.7" by 78.7", 1 Roll

Easy to apply and it do prevent people from seeing in. But it seems to want to peel off the window at the corners. I did put this in a bathroom window by the steamy shower, so that could be why.

The privacy is not that great but still awesome good looking