Lake sport Series boat seat mount 818441-3 fits all 2-3/8 inch swivl-eze and other brand seating systems. The cast aluminum base provides three degrees of tilt, a friction control handle and features stainless steel components for durability and corrosion resistance. Attwood develops high value, engineered marine products to make life on the water easier to enjoy. Made to meet the demands of boat builders and distribution partners, our products are extensively tested on-site in our lab to provide worry-free boating under all conditions.