By using a plastic or glass screen protector you prevent scratches and dents in your screen.
Are you looking for protection for the display of your Oppo A57S?Then this clear screen protector is a good option.The protective layer does not get in the way and offers protection against dirt, dust and sharp objects.This way you prevent scratches in the screen.
Protection for your screen
This just in case hardened glass clear screen protector Oppo A57s made of tempered glass is a thin layer of glass which gives your screen the optimum protection against fall damage on your screen!In addition, the glass plate is almost not visible on your screen.