Adjustable floor pulley for manually operated track systems. Side plates are formed steel with a plated or black powder coated finish. The pulley is equipped with one 5" diameter glass-filled nylon ball-bearing wheel that is adjustable up to 7" . The wheel locks in place once proper tension is achieved, via a threaded axle equipped with a threaded hand lever. This pulley can be used with most ADC track systems. It is standard on Patriarc® 500 systems.