Firstly, without a doubt, the screen protector is the one that you should buy for your iPad Air 4. It's a screen protector tailored for precision with excellent sensitivity/response when using your apps etc on your iPad. .It is unobtrusive and easy to install. I found the instructions very easy, just snap the alignment box which is easy. There were reviews that the alignment frame didn't fit and there were too many bubbles on the screen. It's actually just "user error" to be realistic. when someone is struggling to do that job. Ask someone else to try. you did.
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