Reminder: When used as a car phone holder, this phone holder can adhere to smooth surfaces such as the front windshield or central screen of a car, and cannot adhere to the dashboard. If the surface is not smooth, we have shipped a base that can be attached to a non smooth surface for use. This phone holder is attached to a smooth surface using a vacuum suction cup and does not contain any adhesive. It is compact and portable, and can also be used in kitchens, bathrooms, living rooms, gyms, and other places. Car suction cup vacuum magnetic phone holder: The upgraded suction cup phone holder can easily connect to any smooth surface, such as glass/central screen/room glass/marble tabletop, by simply rotating the dial. The N52 strong magnet on the front can generate strong attraction and easily attach your phone in less than 1 second. Gently rotate, vacuum suction: Unlike traditional electric vacuum suction cup phone holders, the latest car suction cup vacuum magnetic phone holde