The Vevor boat seat pedestal is an adjustable aluminum alloy chair base designed to improve comfort and positioning on the water. It features forward and backward sliding adjustment with a 360° angle adjustment and locking knob for a secure seating position. Its waterproof, corrosion-resistant construction is built for marine environments and repeated outdoor use. Pre-drilled mounting holes help simplify installation on compatible boat setups. This pedestal is designed for use with 2-7/8" diameter base posts and fits a wide range of boat seat styles.