Mount-It! Premium Car Headrest Tablet Holder with Adjustable Arm | Heavy Duty Aluminum Car Tablet Mount for iPad, Galaxy, & Fire Tablets The Mount-It! Car Headrest Tablet Mount is designed to be an adjustable, rear-facing tablet holder that allows your car passengers to view or use any 7" to 11" tablets conveniently from the backseat of the car. No special tools necessary - the headrest mount can be easily attached and removed from a car's front seat headrest post. The heavy-duty, durable aluminum arm securely holds your iPad or tablet in place while your vehicle is in motion.