Extended compatibility. Order and convince yourself! In the package you will find two metal plates ideal for any magnetic phone holder . So useful that they are the most desired phone accessories! With a thickness of 0.4mm, it does not thicken the device and allows the use of a protective cover. Add them to the basket! How do you mount the two metal plates for the magnetic phone holder? Whether you choose to apply it on the round or the rectangular one, the installation is done immediately with a very resistant 3M adhesive . The plates can be attached either directly to the phone or to its protective cover.