Extreme Max 3004.3156 Slider Trax Multi-Fit Slider Base - Straight, Pack of 4

Fits Boats with OEM Rails - The multi-fit design fits most boats pre-equipped with gunnel extrusions like Lund and G3; works great with Lund Sport Trak Construction - Bases are made of heavy-duty composite for maximum durability and damage-free life Versatility - Each base offers a 3" x 4" surface to mount your accessory base OEM Approved - Available pre-installed on certain model boats from recognized OEM leaders Options - Slider Trax bases and rails are sold separately to maximize ordering options