【Wide Compatibility & Perfect Fit】Designed for 4-7 inch smartphones like iPhone 17/16/15/14/13/12/11 Pro Max XR X series and Samsung Galaxy Note series. Supports rearview mirrors with length: 3.8-5.6 inches, width: 2.2-3.4 inches, and thickness: 0.9-2.2 inches. 【The Most Comfortable Driving Position and Angle】The rearmirror phone holder for car with highly ball-joint 360°rotation, allow you to view your phone from all angles in portrait and landscape mode. It also can move up and down up to 2.15" depending upon your viewing angle that sends your phone much closer to you. Most importantly, you can fix it in every direction to avoid obstructing the view. 【Upgraded Secure Mirror Clip】The reinforced rearview mirror clamp firmly grips the mirror frame, ensuring exceptional stability even on bumpy roads without slipping or shaking. 【Auto-Lock Phone Clamp】Equipped with an intelligent auto-lock mechanism that securely holds your phone in place, providing reliable protection during drives. 【Easy One-Handed Installation】Includes a retractable dock and one-touch clamping function for effortless one-handed operation. With clear instructions, install in just 3 minutes without tools. Please note that some state laws do not allow the use of this product.Please make sure the size of the product is suitable for your car's rearview mirror before purchasing.