I bought 2 of the 19 inch 5:4 privacy filters used on Asus VB199 monitors. They are too big and I had to slide them between the display and the bezel (around the display). Film #2 does not stretch with the target tab and you have to pull out the privacy shield to take it off. The privacy screen isn't great, you can see the writing on the screen from 3 feet away if you stand at a 45 degree angle from the center of the monitor. I didn't return them due to the hassle of packing and returning them, but I won't be buying them again (for many other monitors I have). NOT RECOMMENDED
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