This product is metal plate for phone car holder, including 6 round metal plates and 6 rectangle metal plates. Just simply stick the metal plate to the back of the phone, the back or inside of the phone case. It works great with various phone holder car mounts, and it is compatible with all smart phones. Features -Color:Assorted Color -Material:Stainless Iron -Rectangle Size:6.50X4.50X0.10cm/2.55X1.77X0.04in With enough quantities, two different shapes of round and rectangle, this metal plate can meet your various use needs This universal metal plate has smooth surface and rounded edges, which will not damage your fingers and your phone. Each mobile phone plate uses a strong adhesive on the back that can stick firmly to the device or case. When you use a car phone mount, this metal plate sticker can keep your phone stable and safe while driving This plate is universal, works with any mobile phone holder, such as car mobile phone holder, etc. Package list: 6 x Round Metal Plates 6 x Rectangle Metal Plates