Cannon Uni-Troll 10 STX Manual DownriggerUni Troll 10 STX Take command of controlled depth fishing when you equip your boat with a Uni TrollT downrigger. features an innovative design that lets you pull your lines back in with less cranking effort and One Hand Clutch Deploy for simple precise bait positioning. Built with a 2: 1 retrieval speed, a low profile swivel base and a heavy duty telescopic boom that extends from 24" to 53". More control at every turn. Take command of controlled depth