Applicable device models Material: ABS+PC+magnet+silicone Magnetic head+ suction cup Perfect for All Smartphones & Cases Just attach an extra metal ring on the back of your non-mag safe phone/ case, then you can use this car phone holder for any phone & case perfectly and enjoy the convenience and safe driving with this car phone mount holder. Full Ring of Strong Magnets This car dash mount is built-in with a full ring of 16psc strong force magnets. Provide strong magnet suction and keep your phone from falling off even on a rough road Multiple Viewing Angle Adjustable ball joint allows 360°rotation for optimal viewing angles of your device. Adjustable swivel arm accommodates desired angle of 180°. Humanized design of adjustable ball and swivel arm is fit for any driver.