For Most Mobile Phones, Tablets, Game Consoles And Other Devices. Tight-Locking Headrest Holder, Firm And Does Not Fall Off, Easy To Install, The Lock Position Can Be Adjusted According To The Width Of The Headrest. Hidden Folding Arm, No Unnecessary Edges And Corners, To Protect The Safety Of Passengers During Driving. Compared With The Elastic Support Design, The Service Life Is Longer.