• 3/4-inch boat seat post pin with 11" height, 1.5" exterior diameter
• Fits for most standard 7" x 7" marine boat seat base pedestal mount
• Lock-in reliable 360 degree swivel design prevents accidental detachment from boat seat base mount, 3/4" boat seat extension post pole and base
• The boat seat post pole is made of aluminum alloy with non-threaded steel pin for solid construction and corrosion resistant, withstanding all harsh marine conditions
• The lock-in 3/4" boat seat pin post is a perfect replacement for adding additional boat seats on pontoon/bass/jon/fishing/cruising boats/deck/dock
• 6” 11” 16” three sizes marine boat seat pedestal pin post for your choice, convenient seat height for comfortable sitting position and smooth rotation, enhancing boat travelling or fishing experience and operating the foot pedal trolling motor more safe and easy