Mount Metal Plate with Adhesive for Magnetic Cradle-less Mount -X4 Pack 2 Rectangle and 2 Round (Compatible with Magnetic mounts) 4 Pack 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,