1. Only compatible with :for Dodge RAM 1500 2500 3500 2013-2018. SPECIAL CAR BASE DESIGN, only for a specific model development. The most appropriate location, make sure the phone is in the viewing Angle. 2. 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 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. 3. 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). 4. 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 15 14 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