NO BLOCK VENT & SAFER DRIVING: This car vent phone mount with folding back structure is very neat and keep it small when not in use, only 1/2 card size and 3 inches away from the vent to still allow air flow. You can have a wider sight and adjust this gravity car phone holder up/down or left/right. NOTE: THE HORIZONTAL MODE IS NOT SUPPORTED. UNIVERSAL COMPATIBILITY: This universal car cell phone holder will firmly hold all the smart phones (4-7in) even with thicker case (=14mm) compatible with iPhone 13 12 pro max/ 11 pro max/XR/X/8/7/6/5, Note 20 10/ Galaxy S10+/ S9/ S8 /S7 /S6 and more. NOTE:WE RECOMMEND USING THE SMALLER PHONE(<4.7inch) WITH PHONE CASE. UPGRADED AIR VENT HOOK: This car vent phone holder mount is designed as "Hook shape" and form "Three grasp points" which can firmly hook around the a/c vent for no slippage or movement. It solving the market's common problem of falling forward and off the air vent constantly when going over bumps or turns. NOTE: THE LENGTH OF CLAMP BETWEEN 0.41-0.98IN. THIS PHONE HOLDER ONLY COMPATIBLE WITH HORITABLE AIR VENT. AUTO LOCK, NO MORE FALL :This gravity slide-in car phone holder creatively features the Auto-lock arm-slots that stretch on the side can auto adjust to hold phone more firmly without fears of bumps. Compared to manual lock version which being loose frequently, as its automatic rebound design you no need for secondary adjustment. Special curve of arms fit phone better. The phone was all-round protected by silicone rubber on the inside clamps. NOTE:MAXIMUM THICKNESS OF DEVICE IS 14MM (0.5IN). THE EASIEST OPERATION & JUST SLIDE IN AND GO: Just slide in your phone, car phone holder mount clamps the phone automatically by gravity and provide the easiest operation and a strong stable hold without button to press. Easy to drop phone in and pick phone up with two fingers. Compaired to old car holder, you no longer free hands to spend too much time in looking down to place phone while reseting the navigation route. When getting off car in a hurry, just pick up phone and leave in seconds.