The Springfield Adjustable Economy Boat Seat Pedestal includes a 7" x 7" square base and seat mount. Made with rugged, all steel construction, this pedestal has an E-coat corrosion-resistant finish for handling all weather conditions. This pedestal adjusts from 12" to 18" high in 2" increments. For use with standard boat seats. 5-year mfr. warranty. E-coat corrosion-resistant finish for handling all weather conditions Adjusts from 12" to 18" high in 2" increments For use with standard boat seats | Adjustable Economy Boat Seat Pedestal and Seat Mount