Description: Broad Compatibility:This car headrest mount works with tablets, cell phones, and other devices ranging from 5in to 14in, thus a broad spectrum of mobile devices covering in the market today. With the spring-loaded method, the holder will grip the device tightly, doesn't budge easily. Intentional holes allow the device could still be charged while being clipped on the car headrest mount.     360-Degree Rotation, High Maneuverability:With a fully customized ball joint and arms that provide 360- degree rotation. You can use your tablet in either portrait or landscape modes. And you can also choose the height, distance, and viewing angle that is most comfortable for everyone.    Secure & Stable:The car headrest mount has a stabilizing arm to effectively support larger screen devices, making it a convenient way to hold most 14in tablets. The speed bumps won't affect the screen. You can adjust the tightness freely with an Allen wrench (included).    Rubber Protection:The tablet headrest mount comes with soft padding to protect your device and car headrest. The post should be 5.1 into 6.3 in apart measured from the inside of each post.    Specification: Material:abs+pc+Aluminum;  Color:black;  Compatible with:5-14 inch devices;    Packing List: Car seat rear pillow telescopic phone holder.