Securely mount your smartphone vertical or horizontal with the Proworx Smartphone Air Vent Car Mount. This phone holder will firmly fasten into your car air vent and hold your phone with ease featuring a spring tab and sturdy lower legs for added support onto your smartphone. Proworx Smartphone Air Vent Car Mount offers one-touch extendable side arms that accommodate to phones up to 3.5 inches (8.9cm) in width. Turn knob lock created for stability. Position smartphone in any desired angle. Rubberized padded protective grips ensure a firm grip on your device and the holder provides 360 rotation capability.