The glue does not stick to the camera lens. It needs a little more thickness in order to stick, resulting in it not sticking to the phone at all and coming off. Choose something else!

Just wasted 9 euros, the product has a manufacturing defect and never sticks to the device. I had a product from the same company for a year and a half on my iPhone 13Pro and it was excellent, that's why even though I had read the negative comments, I ignored them and bought it.
WASTED MONEY, STAY AWAY, it never sticks to the device, just threw 10 euros in the trash.

I have bought it twice (hoping the second time I would be luckier and it would stay stable after installation) from 2 different stores with exactly the same result. After installation, it doesn't stay stable, resulting in it coming off. I returned it. I had bought a glass protector from the same company for the iPhone 14 Pro Max without any issues.