They are sold in two packs because you will almost certainly use the app mess up the first time lol. I wiped the screen very gently and tried to gently apply the screen protector but it still has bubbles that I just couldn't get rid of. Also, the screen protector is 1-2mm narrower and shorter than the screen, which bothered me a bit. It offers a nice matte anti-glare finish without sacrificing screen sensitivity. I bought this to help with reproduction painting but haven't decided yet if it's better than no protective film as it seems a little more grainy/textured than I'd like. I wish it was a little smoother, although that would probably mean less protection from glare.
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