Screw Air Vent Tightly: Cell phone holder for car adopts a metal hook with a thick plastic layer wrapped around the outside, it can firmly lock the vent blades without scratches and is compatible with both horizontal and vertical vents | Hold Phone Securely & Safe Driving: Car mount for iphone offer secure grips for your phone to ensure safer driving, equipped with upgraded hollow silicone rubber pads, you can roll over your phone at will and it will never fall off | Universal Compatibility: Car phone holder is suitable for all iphone android mobile phones (4.0-7.1 inches) with thick cases such as GPS devices, Perfect assistant for Uber, pick-up trucks, SUVs, and taxi drivers | Easy Installation: Car phone mount hook clip can down into the air vent of the car, and rotating the adjusting knob locks the blade, the quick-release button on the back allows you to easily sheath and remove your phone with single-hand operation | Adjust Angle as your wish: With the 360-degree swivel head on the car phone holder mount, your phone can be rotated easily in landscape and portraits as well as anywhere in between