Everything was great, but unfortunately cardboard flap adhesive residue left behind

Actually, I'm happy with the film - it fits perfectly on your mobile phone, has good adhesion and bubbles can be easily flatten. The film is (as it did in the product description) slightly smaller than the screen, but this does not bother.

One star deduction there from me, because the cardboard flap that sticks to the foil in to place better for me not good went off (after the film on the display was). At this point the cardboard flap has unsightly sticky residues that 100% were not removable left.
I hope that's not at all the other seven films that way.

Otherwise, a recommended product.