The RAM-B-316-1-202U consists of the RAM POD I universal No-Drill vehicle base, 18" rigid aluminum rod, single 1" ball socket arm and round base adapter. The base of the mount connects to your seat rail without any drilling necessary. The 18" rigid aluminum rod can be bent to position your device to its optimum viewing location. The 2.5" diameter round base adapter contains the universal AMPS hole pattern.