The tripartite division of the back is also great, thus avoiding air bubbles or the center can freely or as described in another review, combine, with a clear foil.
With me was missing in the delivery part 3 for up :( but what will not affect the review now.
I have to find fault with the supplied cloth but. The fluff in my opinion, extremely and partially dissolve little white pieces from. I would omit it or replace it with a small microfiber cloth - The same I have now taken (no idea from which the supplied material is).