The Original Moment Mounting Plate is a thin, stainless steel plate with a built in attachment interface for O-series Moment Lenses. It adheres to a variety of iPhone and Android devices, making your phone ready to use with an Original Moment lens at any time. The plate is thin enough to be used underneath a variety of common phone cases, but strong enough to be used on its own without a case. Although the plate adheres to the phone it is NOT permanent and can be removed.