Metal Plate Kit 1 of Round Small 3 of Round Big for Magnetic Phone Holder Dash Mount Metallic Plates Replacement with Adhesive Metal plate for magnetically mounted car dash phone holders Works with magnet mounts designed to hold phone tablet GPS with the metal plate Use it with smartphones and tablets magnet mounts replacement mount plate kit to make the magnet mount work well Self sticky 3M Adhesive metal plate mount easily sticks to the back of devices for easy mounting Satisfaction or money back guarantee!