Macally Car Headrest Mount Holder for Apple iPad Pro/Air/Mini, Tablets, Nintendo Switch, iPhone, Smartphones 4.5" to 10" Wide with Dual Adjustable Positions and 360&deg; Rotation (HRMOUNTPRO) KID TESTED, PARENTS APPROVED: Keep your children or other backseat passengers entertained on long drives, drive in peace, and avoid paying for expensive backseat entertainment systems YOUR PREFERRED ADJUSTABILITY: Choose having your tablet directly behind a car seat for a single passenger or in between the driver and passenger seats for multiple passengers. The ball-head also allows for different viewing angles and for 360 rotation. TABLET & SMARTPHONE COMPATIBILITY: Cradle fits tablets with the bulkiest of cases and any other mobile device between 4.5 to 10 wide securely SECURE & STABLE: Designed to keep the tablet stable and from bouncing while driving with the strong aluminum shaft QUICK & EASY INSTALLATION: With no tools required, simply twist the knobs to quickly attach or detach the mount to most headrest posts (2 and 7.25 wide)