Track base, 1 in.
track dimensional range 0.64-1.42 cm, 1 in. ball (size B) - RAP-B-383U
A track base allows the direct attachment of a RAM Mount system to an already mounted accessory rail. For example, the bases are suitable for Airline tracks, Gear Trac, SlideTrax, Toyota E-Bar and others. With a quick turn of the ball, the base can be moved along the rail.