The Springfield Surface-Mount Base Plug-In provides the perfect, stable foundation for a secure installation of your boat seat without complicated cutting or drilling. This surface-mount floor plate is universally compatible with any 2-3/8" (60mm) seat post and guarantees a wobble-free seat while cruising and casting. Thanks to its durable aluminum construction and stylish satin finish, the base is highly resistant to the elements, ensuring years of reliable use on board. 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.