Featuring one expandable arm, this mount can firmly hold cell phones up to 2.5 in wide, with or without phone case, including Apple iPhone6+, Samsung Galaxy Note 4, and many other models. Thanks to the swivel head joint, your cell phone can rotate 360 degreesdegrees and be adjusted for navigation or other applications. The high quality rubber gripping design of the clip maximizes friction to reduce possible slippage, so the base of the mount remains fixed in the air vent of your car, providing steady support for your phone even when you are driving on a bumpy road.