The RAM® Quick Release Socket Arm Extension consists of a 6" long B size socket arm, a 3.73" long B size socket arm, a double ball adapter connecting the two arms together, and a post ball adapter that will connect to the RAM® Universal Wheelchair Base receiver. The quick disconnect feature on the post allows you to quickly insert and remove the mount from the base as needed. These socket arms can adapt to any RAM® holder with ball for supporting your phone, tablet, cup holder, or any other device. To achieve the perfect mounting position of your device you could use only one of the socket arms provided, or connect the two arms together for the extra extension.