The RAM-B-149Z-TAB-LG consists of a zinc coated u-bolt base, standard length double socket arm, diamond adapter base and universal Tab-Tite^™ cradle. Included in this package is hardware that will accommodate rails from 1.27cm (0.50") to 3.18cm (1.25") in diameter. A composite rail adapter can narrow the rail to a minimum width of 1.27cm (0.5") . The mount is designed with a RAM 2.54cm (1") diameter patented rubber ball and socket system that has adjustment points at both ends of the double socket arm; this allowing for almost infinite adjustment and perfect viewing angles. With 2 sets of interchangeable cup ends, ranging from different sizes and features, you can fit the cradle to your tablet for a near custom fit. This spring loaded design makes it easy to load and unload your tablet, along with keeping it secure while on the go. Cup ends are designed to optimize the functionality of your tablet, allowing access to audio jacks, usb, power, and other ports, your tablet can be used just as it was intended. Perfect for stationary or on the go applications, this new RAM product is just what you need to get the most out of your mobile device.