The TAB18825MM car or truck seat rail or floor tablet 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 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. This mount includes Arkon's Slim-Grip Universal Tablet Holder and 18'' flexible aluminum gooseneck seat rail or floor mount with a 25mm (1 inch) compatible Robust Mount Shaft. The Slim-Grip tablet holder 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 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 and then re-tighten. The aluminum car seat rail or floor mount is ideal for those who prefer mounting their tablet somewhere other than the windshield or dash. Use a socket wrench to install the mount bracket to the car's seat track bolt. Bend the 18'' gooseneck and adjust both of the mount's 25mm ball adjustment points for 360-degree rotation of the tablet. Optional floor brackets are included for screwing the mount directly into the floor of the vehicle. (Warning: Drilling into the vehicle's floor may damage the vehicle. Use caution and consult a mobile install professional to avoid drilling into any sensitive vehicle components.) Ideal for fleets and service vehicles and trucks Mount features a 18 inch gooseneck Slim Grip Holder fits large tablets 7 to 18.4 inches in screen size Support legs are customizable and adjustable