If there were negative stars, I would give them.. I rarely find a product that doesn’t suit me; I followed the instructions exactly via video because..
1. The product does NOT have instructions, so you have to guess.
2. When the adhesive was applied and then the glass was placed on top, there were bubbles everywhere. I tried with the spatula that came in the package and it did nothing.. essentially it was spilling out from the sides and the bubbles kept continuing.
3. There was a discoloration of my phone’s color on the sides after the adhesive... and I should say that I did not cure it with UV because I got annoyed and threw it away.

In the end, it was thrown away as it was after a lot of time trying, and the almost 13 euros went to waste, which I consider unimaginable for the whole process.. Surely a professional might have done it, but for home use it’s difficult.