The RAM Quick-Grip XL Phone Mount with RAM Twist-Lock Suction Cup from RAM MOUNTS provides a secure fit for a variety of large phones and other devices. The adjustable side keepers ensure that the device stays in place during rough driving and when in landscape mode. Included is a medium-length B-size socket arm, B-size RAM diamond ball base with a 1' diameter ball, and included hardware. Make sure to thoroughly clean the surface you will be mounting the suction cup on to ensure a secure hold.