【PORTABLE & TRAVEL FRIENDLY】This Tablet Headrest Holder specially design for Car Headrest, Let other Backseat passengers entertain while driving with long distances. Ideal for rear passengers watching movies, areading e-books, playing games, etc. during road trips.【SECURE & STABLE】Designed to keep the tablet stable and from bouncing while driving with the strong aluminum shaft ,The Car Headrest Mount Holder Mechanical switch design