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. Easily insert and remove your phone with one hand. Included is a RAM® diamond ball base featuring a B size ball and hardware. This allows for connection to any B size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability. It’s made of powder-coated, marine-grade aluminum and high-strength composite for durability and reliability in the most demanding environments.