The Phillips Industries X-TEND Day Cab Tracker Bar Extension is for tractor model applications with back windows. The X-TEND's design prevents damage and decreases driver distraction from cables banging up against the back of the cab by extending them out an additional 8" from the tracker bar. Its increased length allows the support bracket to rest lower, below a window. It does not require any mounting hardware and is easy to install. Two sizing options are available for use with either a 3/4" or 1" diameter tracker bar. Soft cushion foam padding on the back of the nylon support bracket prevents damage when rested against the cab's metal surface.