I bought the sheets because I often use my GoPro without your housing or with the open backdoor. Scratches on the display are actually as inevitable.
The kit comes with all that is needed to bring about the films. Lens cleaning paper and stickers to clean the surface, a thick paper map to expel air under the film and each 3 films for the front display and 3 for the touch screen.
The installation was easy and leads to a good result when you clean the surface thoroughly beforehand. First, the clear underside of the film pull, foil hang up (the blue Schutzolie with the chessboard helps align it precisely), bubbles push out (the blue Schutzolie with checkerboard prevents scratching of the actual protector), and then the blue protective foil with the chess board at the Pull flag.
And is gone when things go wrong one has still 2 more attempts.
