Sterling Tackle 18" Tracker Spreader BarSterling Tackle 18" Tracker Spreader Bars are tuna catching machines! Built on a titanium spreader bar, the bird has a fixed transparent plexiglass keel that makes the bar kick out to the side up to 30'. This gives you the ability to have a very wide spread and troll water you would not cover without it. If you use outriggers, you can get this bar to track out even further allowing you to cover a ton of water! Sterling Tackle 18" Tracker Spreader Bars