Universal Adjustable Car Cup Mount Phone Holder with Extra Long Neck for Cell Phone Increase the base size from 2.2 inches to the maximum 3.4 inches when rotating counterclockwise the stripe area of the bracket The adjustable base can be perfectly installed in the cup holder of cars, trucks or SUV. It is also suitable for cup holders with different sizes Fit smart phones with the size from 2.1 inches to 3.4 inches, or electronic equipment whose width is within 2.1 inches - 3.4 inches The flexible goose neck and 360° rotatable holder enable to rotate your phones 360°, which provides maximum flexibility and makes you operate and access phones flexibly and easily. It also ensures a safe driving when you are speaking, navigating, listing to music or it is charging Press the button at the back of the cup holder to make its arms stretch and therefore put down phones. Press the both-side arms to clasp phones again. With simple operation to save time and energy. The one-key release design help