When you place it and try to remove the last stickers from the front side, the glue is very difficult to remove, resulting in the need for alcohol rubbing and ultimately affecting the quality of the glass.

The worst screen protector I have ever bought. When I tried to remove the stickers, the screen got filled with glue. Maybe it had been altered due to improper storage or something else. I threw it away without even placing it

Perfect for the 4a. It applies nicely and doesn't distort the image. Of course, there is no manual, but you can easily find online videos that show everything step-by-step.