The mount shaft arm measures 5 inches (127mm) tall and along with your choice of mount head and base (sold separately), is ideal for creating a mount solution with adjustment points on each end of the mount. Use this mount shaft with Arkon's APAMPS38MM adapter to create a 4-Hole AMPS mount.
The SPRM38MM Large Metal Mount Shaft is part of Arkon's Robust Mount Series and can be used with 38mm (1.5 inch)-compatible mount bases and heads to create your own custom mount solution. This includes only the Large Metal Mount Shaft (holders and adapters sold separately) with tightening knob.