As someone said, it's not rocket science. These screen protectors are mostly made from the same materials, each laser cut to fit different products. Especially this brand is pretty bad and I didn't like the feel of the touch. It's quite sticky (yes, I installed it correctly) and is a serious fingerprint magnet. I really miss the original feel of glass. I would NOT recommend this product. Another small point of criticism is that the approx. 1mm thick protective film on both sides is not flush at the top and bottom near the hinge. Not big, but I reckon it will start collecting dust and then everything will fall apart.
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