Arkon's tablet headrest mount is a road trip essential and is ideal for multiple passengers who want to view a tablet in the center of the back seat. The mount can be used with all large tablets 7 to 18.4 inches in screen size, including Apple iPad Pro, iPad Air 2 and iPad Air, iPad 4, 3, and 2, Samsung Galaxy View, Galaxy Note 10.1, Galaxy Note Pro 12.2, Galaxy Tab A 8.0, Galaxy Tab E 8.0, Galaxy Tab 4 10.1, Galaxy Tab Pro 10.1, Galaxy Tab Pro 12.2, Galaxy Tab S 10.5, Google Pixel C, Nexus 10, and Nexus 9, and LG G Pad 10.1. The mount features Arkon's headrest clamp base, which easily attaches onto most 2-post style headrests on either the front or back seats with an included Allen wrench. An adjustable double-ball Robust Mount Pedestal connects the base to the Slim-Grip Tablet Holder, which fits tablets 7 to 18.4 inches in screen size. The holder features a spring-loaded design that makes it easy to insert or remove the tablet by pushing down on the lower legs of the holder with one hand. Included with the holder are 10 support legs (4 short, 2 medium and 4 long versions). Choose the 4 legs that provide the best fit for your tablet. These insert at the top and bottom of the holder and can be easily adjusted in order to keep any side buttons and ports unobstructed. For most large tablets, the best mount holder configuration is to attach 2 short support legs on top and the 2 long support legs on the bottom of the holder. For smaller tablets, use all 4 short support legs on the holder. For larger tablets including iPad Pro, use all 4 long legs. For vertical viewing, adjust the 360-degree swivel.