RAM MOUNTS' RAM-B-138-TAB8U consists of a 2.5 in diameter round base with the universal AMPS hole pattern, double socket arm, round base adapter and Tab-Tite(TM) universal clamping cradle. The mount is designed with a RAM 1 in 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. The included Tab-Tite(TM) cradle includes a spring-loaded back plate and custom support cups for 10 in screen tablets with heavy duty cases. The spring-loaded design makes it easy to load and unload your tablet, along with keeping it secure while on the go. Interchangeable 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.