A complete wallpaper for iPhone 8 Plus devices. It is used in the event that the old wallpaper is damaged or for a damaged wallpaper, by changing the wallpaper from the old device to the new wallpaper by taking parts from the old device, including the battery, camera, flexes, device board, and other internal parts.
This is a spare part that requires high skill to be installed by a specialized person and specialized equipment. Therefore, you can follow some explanations on YouTube regarding the installation method.