A great diesel fan truck accessory. Enjoy hands-free phone use while driving. This Cummins cupholder phone mount is compatible with any device that is 4.7-6.8 inches wide. The tension mount enables you to mount your device with one hand and the non-slip pad adds to its secured placement. This is a sturdy one-button release phone mount suitable for virtually any vehicle cupholder. Simple to install and simple to use with iPhones or Galaxy and many other devices. The adjustable base is customizable to your cupholder and the extendable arm lets you adjust the mount to your preferred height (from 8.5 inches to 10.5 inches). Padding on the mount helps buffer vibrations from the truck and OTR stress. Get it close to eye level for a quick glance. Easily rotate the mount 360 degrees to get your best visual angle whether for yourself or your passenger and copilot. Your cupholder phone mount will stay snug while you travel because the base is customizable and adjusts to your setup. And what better mount for an in truck phone holder than one with the Cummins logo. Cummins official licensed product.