Combination of car cup holder expander and phone holder, Flexible adjusted viewing angles,Compatible with most phones(up to 4" wide), Fit for bottles/cups/mugs in 2.83" diameterDuring the trip, THIS cup holder phone holder gives your phone a place to navigate or charge in the car, and the tight clamping force can secure your phone from falling off, stop and relax during a short break in your journey. Sip on a delicious coffee and enjoy a movie.