Use your boat's 1/4" rail track system to its full potential! The Extreme Max 3005.4287 Universal Track Bracket provides an excellent base along your boat's track to mount a wide variety of accessories, including fishfinders, depthfinders, GPS, sonar, rod holders, and more. Oversized knobs make installing and relocating the bracket easy without needing to remove the attached accessory. The bracket may be used with the pre-drilled mounting holes, or drill your own holes for a custom fit to nearly any accessory. Its durable aluminum construction provides the strength needed to support your accessories and offers great protection against rust and other damage.