The mag plate was designed to keep your everyday case on your phone all the time and still use our universal optic adapter (uni-2), no need to change cases when you are ready to digiscope. Always have access to your phones camera options and flashlight . The mag plate kit uses earth magnets for a quick solid connection. Mount the mag plate to your smartphone case using the supplied 3mVHB tape and your ready to digiscope. Super fast & a low profile design.