The parts that come with the PS4 are fine, but the controller parts just rip them up and throw them away no matter how clean they are. I wipe mine down with rubbing alcohol before trying to install them. Wait while they tried to install them but they didn't fit well and they were starting to peel off so I threw away over half of them if you just want to cover your PS4 and that's it then it's fine , if you want to do all the settings, do not worry