This version of the spring-loaded RAM Quick-Grip holder provides a secure fit for a variety of large phones and other devices. The adjustable side keepers ensure that devices like GPS units and Bluetooth speakers within the listed compatible dimensions will also fit in the holder. Included is a medium length RAM double socket arm and a 2.5” drill-down round ball base featuring the universal AMPS hole pattern. The ball and socket system provides shock and vibration damping, and allows for near-infinite adjustability to achieve an ideal viewing and operating angle of your device.