Although the product originally came without adhesives, after about 2 weeks they sent me two sets of adhesives. I appreciate that they solve the problem and check if I like the product. It's efficient, but I guess it depends on how efficient you want the screen to be. Anyone sitting to my right or left can't see exactly what I'm doing, but the screen doesn't go completely black (depending on the angle from which they're sitting next to you). Also, the adhesives were easy to apply, but attaching the screen over the adhesive can be tricky if you don't have steady hands. It's true that you won't be able to close your laptop once you turn it on, but that goes without saying since you're basically adding a layer to the screen. I would probably recommend and buy this product again as the price matches the quality. If you look at the attached photo you can see how effective the screen is.
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