A good screen protection

It's been twice that I control these screen protectors.
They are not perfect but they are very good, not too expensive and it's not bad.
They arise without much difficulty, they are durable and pretty much transparent.
Of course for the installation must be in a place free of dust and well take your time, it's always the same thing with this kind of product but with those j 'will not get too bad.
They are not too late and above all they have a protective film on both sides.
Once in place it must oust micro bubbles, it makes it pretty well and then remove the top film recess.