Deck Mounted Seat SlideSwivl-Eze has the boating experience to deliver all the kinds of accessories you want.Features: Seating accessories for retrofitting and improving Adapters to change a post installation or swivel location Mounts directly to the boat deck 1-5/8" total height Constructed of strong aluminum Convenient front control operation For use on stamped and welded seat mounts or cast seat mounts not originally equipped with slider