The Springfield Base Satin provides the perfect foundation for a safe and stable installation of your boat seat. This built-in floor plate is universally compatible with any 2-3/8" (60mm) seat post and guarantees a wobble-free seating position while boating and fishing. Thanks to its sturdy aluminum construction and stylish satin finish, the base is highly resistant to the elements, ensuring years of reliable use on the water. With its easy installation, this robust plate is the ideal upgrade for your fishing boat, allowing you to fish comfortably and with full focus at all times.