Retractable Structure This holder uses a retractable design that fits various car models' rear seat headrests or seatbacks. It keeps your device in an viewing position and can be lengthened or shortened to match your car's setup. Easy to Install A stable clamp securely fixes the phone holder to the car headrest, delivering a firm grip and preventing any shaking or loosening. It accommodates a range of headrest widths for safe, stable device support. Adjusted Seamlessly switch between vertical and horizontal screen orientations. The adjustable clamping arm and support plate provide the right viewing angle for your preferred layout. Compatibility Compatible with smartphones, tablets, and other devices of all sizes, making it convenient for the whole family and handling diverse entertainment needs with ease. Use scenarios Long family road trips: mount tablets or large smartphones to the rear headrests so passengers can watch movies or play games without holding the device. Daily trips or carpooling: easily switch between devices for kids or guests to watch videos or use apps during the ride. Rideshare or taxi use: quick setup across different vehicles to provide rearseat entertainment options for passengers.