Vehicle compatibility:Designed specifically for your car Mazda 6 Atenza 2020 2021.Products include:1 car phone holder1 clip for ventCar mobile support:Installation method (exhaust port)Loosen the knob and place it on the collet.Insert the chuck into the holder.Slightly squeeze the knob and firmly press the spring clip to insert it into the car's vent.Adjust the viewing angle, and then fully tighten the knob.Place the phone on the stand.