RAM Mounts RAM-B-201U Double Socket Arm – 1″ B-SizeThe RAM B 201U Double Socket Arm provides a robust connection between RAM ball bases and device holders or accessories. With dual ball and socket ends and a medium length, it offers near infinite adjustability for positioning GPS units, cameras, phones and lights on vehicles, buggies, rigs and boats. Built from powder coated marine grade aluminium and backed by RAM Mounts lifetime warranty, this double socket arm is a versatile link in any mounting