Rotate 360 degrees: The seat back phone holder can be freely rotated 360 degrees according to your different needs, providing you with the best viewing angle and experience. Stable Mounting Buckle: The stepless pressure retractable buckle design provides 10 times the gripping force than the ordinary type. It's stable and doesn't wobble even on bumpy roads. Telescopic boom: The seat back phone holder has a telescopic arm to help you adjust the distance between your digital device and your eyes. Hollow Design: There are some hollow designs on the phone clip, which is convenient for charging or operating the digital side buttons. Scope of application: The seat back phone holder is widely suitable for digital devices under 12.9 inches, such as smartphones and tablets. Tanks to is a retractable buckle, it is also suitable for cars with different seat types.