<ul> <li>Jaws slide open to 3.5 inches wide</li> <li>The part that goes into the vent rotates to fit both horizontal or veritcal vent slats</li> <li>Holder swivels left and right and up and down for the perfect angle to view</li> <li>Holder rotates to hold your phone either horizontally or vertically.</li> <li>Button on back to release the jaws and take your phone out.</li> </ul>