The uniquely designed holder can be operated with a single hand unlike traditional mounts which need two hands to operate. The phone can be easily mounted by pressing downwards & dismounted with just one hand leaving the other hand free to drive. The holder offers a 360 degree rotation and easy PORTRAIT and LANDSCAPE adjustment for calls & navigation. Powerful Clamps safely grip your phone in place. The insides of the clamps are rubberized to hold your device securely & safely. The notch in the holder base not only supports the phone but also allows you to plug in a charging and/or aux cable.The clamp width extends from 58mm-88mm.