[Effortless Installation]If installed on the dashboard or windshield, you need to install the reinforced bottom pad first, after installation private protective film, paste the car phone holder in the center of the bottom pad, press hard to exhaust the air, snap off the button, the installation is complete! If it is installed in the air vents, you only need to rotate clockwise at the hook clip, stuck in the air vents, and then counterclockwise tightening can be!