Does what it's supposed to do.,
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This review is from: Nokia Lumia 820 Screen Protector Case / Guard / Film / Cover 10-in-1 Pack
I found it a bit tricky to attach to my screen and subsequently wasted two before getting it right. However due to my previous attempts I neglected to clean the screen again so the are some marks towards the top.
Just because I found them difficult to use doesn't mean they don't work, as my last attempt attests to.