Swivl-Eze™ 238 Series 3° Plated Steel Right Handle Seat Mount for 2-3/8" D Post, Aftermarket (238152-7) by Attwood®. 238 Series has Strength, Style and Corrosion-Resistance to the Core. Whether for seat replacement or installation, this sturdy and dependable seat mounting solution will make the process fast, easy and worry-free. Constructed from top-notch materials to withstand punishing marine conditions, it will provide proper and secure mounting of your boat seat, ensuring reliable function and long-lasting service.