Extreme Max Slider Trax System is the most versatile marine accessory mounting system available to consumers, dealers, and OEMs. This system is designed to enhance boats with or without interior gunnel extrusions. Boats without OEM extrusions can use the complete system of rails and bases to create custom fishing stations, and boats with factory-installed system can easily upgrade using individual components. Why SliderTrax? Some (but not all) fishing boats come with track systems that allow users to move accessories by sliding them along track sections. This allows users to easily rearrange and reconfigure their boats to create the perfect fishing spot. Need rails? We've got you covered - See Extreme Max 3000.2134 (4' length) or 3000.3115 (8' length) to get started! Slider Trax components are designed to work together to form a complete aftermarket accessory mounting system, or individually to enhance existing systems.