An iPhone 12 book case or 2-in-1 case protects the front and backside of your device. You can use an iPhone book case not only as protection, but also as a wallet. Because most have a useful card holder. You can fold the front flap of a book case open to use it as a stand, so you can comfortably watch a video. An iPhone 12 2-in-1 case is a book case and back cover in one. This is because you can take your device including protection from the book case, thanks to the magnet. This is useful if you need to make a long call. All cases are tailor-made for the Apple iPhone 12.