Springfield Fixed Height Boat Seat Pedestal Springfield Marines Fixed Height Pedestal System offers a heavy-duty base and post for todays larger and faster recreational boats. These pedestals feature a 2-78 high-strength anodized aluminum post and a AC7A aluminum alloy base with an anodized finish for maximum strength and corrosion protection. Pedestals are backed by a 5 year manufacturers warranty. Features 9 Round anodized base Base has 8 Diameter bolt pattern 2-78 High-strength post Includes