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 RAM diamond ball base featuring a B size ball and hardware. Product Features: Spring-loaded holder features adjustable side supports that provide a secure fit for a variety of large phones and other devices; easily insert and remove your phone with one hand Included B size 1 RAM® rubber balls allows for connection to any B size RAM® double socket arm; ball and socket technology allows for near-infinite adjustability Made of powder-coated, marine-grade aluminum and high-strength composite for durability and reliability in the most demanding environments Backed by a lifetime warranty