Mount Metal Plate with Adhesive Replacement Metal Plate kits For All Magnetic Cradle Cellphone Holder 2 Rectangle and 2 Round, Black Morzen Mounts) Rectangular metal magnetic plates to attach device onto magnet mounts. Great to use with smartphones and tablets magnet mounts. The magnetic plate mount easily sticks to the back of devices for easy mounting Very easy to attach without a hassle. Works with magnet mounts designed to hold devices with the metal plate,