TACO Marine Swivel Seat Mount. For use with the TACO Marine ShadeFin Mini. Designed to fit most standard 4-screw swivel boat seats. To use, remove the boat seat from its pedestal, affix the mount on top of the pedestal where all four screw holes are visible, and then reattach the seat - keeping the mount between the seat and the pedestal. Includes an injection-molded nylon cap. Constructed out of aluminum grade-6061 alloys. Powder coated, Misty Silver finish. 3-year limited warranty.