Warm Tips: This phone holder can only be adsorbed on the smooth surface like car front windshield or car center screen when it is used as a car phone holder, it can't be adsorbed on the dashboard. When using with a phone case the metal plate must be installed on the outside of the phone case, and the thickness ofthe phone case must not exceed 0.5 mm. Car Suction Cup Vacuum Magnetic Phone Holder: NIYEVN Upgraded suction cup phone holder can easily attach to any smooth surface by simply rotating the dial, such as glass/central screen/room glass/marble tabletop inside the car. The N52 strong magnet on the front can generate strong attraction and easily Suction your phone in less than 1 second. Gently Rotate, Vacuum Adsorption: Unlike traditional electric vacuum suction phone holders, NIYEVN's latest automotive suction cup vacuum magnetic mobile phone holder does not need to be charged, just turn the turntable can be easily adsorbed to any smooth surface, a reverse twist is