Very cheap case.
I bought it because my previous 360 full cover case faded and the black cover on the bottom corner broke after a year. It is made of soft thin plastic, so it doesn't provide great protection against heavy impacts. The front and back surfaces are smooth on the outside. Inside, it has a textured surface with dots that are visible on the screen and the back black glass of the phone. I don't know if they can cause irritation on the screen. Not from me. Without wanting to influence, this one is similar to the tforall case because I bought it for my wife who has a redmi 9. It is made of hard plastic and transparent inside and outside. Edit 7/23 Due to the destruction of the first case I mentioned, I was forced to use this one for a year. It has endured countless falls and heavy impacts, and the phone I still use is scratch-free. It has just turned slightly yellow on the sides, and the internal dots are visible on the screen. I would give it a 4/5!