This case only design for Samsung Galaxy A50/A50S/A30S,not compatible with other devices. Unique button flip design,build-in 4 card slots,It makes it easy for you to carry cards;Two buttons can keep them tightly protected without fear of falling out.Please notice, it’s just a button, no magnetism at all. As we mentioned above, the unique flip design can also be used as a mobile phone bracket so that you can easily enjoy the video;Free your hands,very practical,isn’t it? Can you see the circle next to the lid? there is a metallic iron sheet build inside. If you have a mobile phone bracket with magnetic absorption function, it can be easily absorbed. Selection of high quality TPU soft shell,button hidden protection, no longer need to worry about dust flying in.