?Universal Compatibility?: Suitable for all types of 4" -6.7"cell phone. With a one-press release button on the back, the clamp will automatically open when you press the button and you can reduce its width by manually pressing the expanded grips on both sides of the clamp (Note: Please do not pull the two grips to open the clamp by your hands directly). ?Easy To Install & Use?: Unlike other dual phone mounts that block your windshield and aren't easy to secure,ours is installed in a few seconds using just your hands. 360-degree rotation for ideal viewing angle, flexible goose-neck for easy reach, and the open bottom tray design of phone mount allow you to charge your phone. Car driver will be safer and entertaining for you and all passengers. ?360 Degree Rotation & Flexible Gooseneck?: This dual cell phone cup holders have a flexible gooseneck design that allows you to adjust for a good viewing angle. Featuring a ball-shaped pivot, the joint part between the phone mount clamp and the goose-neck can be rotated in 360 degrees. In this case, you can adjust the phone mount to any desired angle according to your personal demands, and glance at your cell phone, GPS, or other devices with a safe and comfortable pose. ?Expandable & Firmly Base?: This cup expander holder for car with an adjustable base can be extended 2.29"-3.39" in diameter which useful for various diameter round car cup holders. High quality ABS material makes this car cup holder stronger than overall. Its diameter can be up to 4.13", it can accommodate super large water cups with a maximum capacity of 1L. Built-in elastic gasket, It can stabilize the cup body and prevent scratches. ?Dual Car Cup Holder Phone Mount?: This dual phone holder for car is designed for your smartphone and your GPS so your hands are always on the wheel while checking the direction. Not only can it navigate and answer phone calls, but it can also be used by the co-pilot and the back seat passenger to enjoy the movies, an optimal solution for safe driving.