Upgraded Air Vent Clip Adjustable width twist-lock clip adapted to various thicknesses of blades widely. Compatibility For Horizontal Vents This Phone Car Holder is suitable for horizontal vents. Cannot used for vertical and circular vents. For Installation Press and lock Suction Cup Soft suction pad brings superior stick strength and can be washable to reused. Versatile View Angle 270 degrees up or down that fits your device in a suitable position Installation Instruction Dashboard Car Mount 1. Turn counter the nut that on the back -clockwise to remove it. 2. Be sure you put the threaded ring through the ball first. 3. Snap right the ball into groove on the back of the holder ,tighten the nut around the well, 4. Keep windshield dashboard or other surface clean and dry. 5. Put the mount at the place that you have clean. 6. Press the button on the bottom of the holder and fix it on your car. Air Vent Car Mount 1. Turn counter the nut that on the back -clockwise to remove it from the cell phone holder for car 2. Slide the ball through the nut and snap right the ball into groove on the back of the car holder. 3. Tighten the nut around the well, be sure you put the threaded ring through the ball first. 4. Rotate the screw above twist-lock clip and make clip open. 5. Twist the holder to the side that you can install easily, make the twist-lock clip into the air vent, rotate it to stabilize. 6. Press the button on the right side to open the holder head. Put devices and squeeze lock.