First time I have in my hand a sticker to remove any trace of dust and unless one draws mean that c c magic !!! I have installed a screen saver package, brands, no markings ... Each time, tjrs the dust grains coming from who knows where and who ruins everything ... There you off again slightly, use the sticker and nothing !!! Just pr it 5 stars, otherwise it would be 4 because I do not find hair cell to the right size, too small I think! (C pr 1mm but quibble!)