Ditch the days of straining for your smartphone with the Tuff Tech Extendable Cup Mount Phone Holder. This unit sports an adjustable base that fits in your vehicle's cup holder. Giving the red textured dial a twist will expand or contract that base for a snug, custom fit. A dual extension arm system allows the cradle to extend to a full eight inches for up-close viewing and access without obscuring your field of vision. In addition, the neck pivots up and down, so you can fine-tune the viewing angle for optimal hands-free use. The mechanical cradling system grips mobile devices from 2-1/8 to 3-3/4 inches wide and keeps them secure until you're ready to leave your vehicle. When it's time to tame that wild terrain, be sure to take the Tuff Tech Extendable Cup Mount Phone Holder with you.