Lake sport Series Boat Seat Mount 818441-3 fits all 2-3/8" 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 Corporation has been an award-winning leader in engineering, testing, and manufacturing the highest quality marine products for over 100 years. We deliver safe and reliable lighting, fuel systems, water systems, seating & pedestals, swim ladders, custom upholstery, and general marine accessories that are easy to install and meet regulatory compliance.