RAM 1" Ball Mount w/ 2/2.5" Round Base (RAM-B-101U) Product Line_GDS It has an 18" rigid

It has an 18" rigid aluminum rod with 2 built-in single socket arms that can fit 1' ball bases and adapters

The Tough-Claw™ can be clamped on rails from 0

Maximum: 25

5" diameter

This is the same size thread features on the underside of cameras and video cameras

RAM 1" Ball Mount w/ 2/2.5" Round Base (RAM-B-101U) Product Line_GDS It has an 18" rigidThe 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 Overall Length: 2.