RAM 1" Ball Mount with 2/2.5" Round Bases that contain the AMPs hole pattern RAM-B-101U

The RAM-B-101U consists of a Medium Length B size 1" double socket arm and two 2.5" diameter round plates that contain the universal AMPS hole pattern. The mount is designed with a patented rubber ball and socket system that dampens shock and vibration, and allows for almost infinite adjustment to achieve the perfect viewing angle. The AMPs hole pattern found on the round plate will connect to many RAM products. Specs & Features  Material: Powder Coated Marine Grade Aluminum   Ball Size 1" Rubber "B" Ball Size  Note: The "U" in the part number reflects product packaged in poly bag.  RAM® double socket arms with their distinctive Hourglass Shape are designed   and recognized to provide the best possible performance for most any   application. The Hourglass Shape is a registered trademark of National   Products Inc.  Weight:0.51 lbs. Overall Height:5" Additional Base RAM® Torque™ 1 1/8" - 1 1/2" Diameter Handlebar/Rail Base with 1" Ball - RAM-B-408-112-15U RAM 3.3" Diameter