Cannon Track System 6"The most versatile track system for complete customization for your trolling spread. This track uses locking grooves to prevent accessories from twisting and allows components to be easily removed or replaced. Features: Tracking system allows for full customization of trolling spreads while fishing with downriggers, rod holders, pencil weights, dipsy divers or planer boards. Aluminum construction won't break down or corrode over time. Includes