Practical Function: With an adjustable heavy base and a sturdy clamping arm, it can provide reliable stability for the phone even on bumpy roads, avoiding dangerous situations that may occur after placing the phone on the seat or center console during acceleration or sharp turns. Easy Installation: The installation of this product is very simple. You only need to unscrew the spiral disc at the bottom of the phone holder, insert the spiral disc into the cup of the car cup holder, and then rotate the spiral disc until it is tightened. Then you need to place the phone on the stand, adjust the stand to the appropriate height, and tighten the stand knob to tighten the phone. Finally, adjust the angle of the bracket to ensure that the phone is in the correct position. 360 Rotation: This product can rotate 360 degrees to meet your multi-directional needs, freeing up your hands and allowing you to easily view car navigation maps or achieve other functions. Adjustable: Unique clamping design that can easily adapt to various sizes and shapes of mobile phones. The supported phone body width is between 1.78 inches and 3.74 inches, which is compatible with most smartphones. The base diameter can be adjusted from a minimum of 2.56 inches to a maximum of 3.7 inches, suitable for most car models. Perfect Gift: The bottom is equipped with anti slip design to ensure the phone is stable in various road conditions and ensure your driving safety. Not only does it have ultimate stability and adaptability, but it also has a unique innovative design that allows you to enjoy the convenience of a smartphone anytime and anywhere while driving.