Best compatible with Spigen's QNMPTM Cases but works with any other phone case as well</br>4 Plates: 2 Round?? 2 Rectangle / 4 Protection Films: 2 Round?? 2 Rectangle</br>Compatible with Spigen's as well as other brand's Magnetic car mount</br>Metal plates have pre-applied 3M Brand double sided tape which leaves less residue than low cost double sided tape</br>Elegant design with silver Spigen logo</br></br>Product Description</br></br>Extra metal plates for your car mount!<br> Includes 2 Rectangle?? 2 Round plates <br> 3M Adhesive <br></br><br/>http://www.amazon.com/gp/product/B01E4U4X1I