2-7/8" EZ-Ride Wave Dampening Pedestal with SwivelInternal gas shock within a mechanical spring provides a wave-dampening soft ride. 12" anodized aluminum pedestal with 9" round base and swivel. 3-1/2" outer post with 2-7/8" inner post and 4-keyed rotational locking collar covers a bushing to restrict movement. Tested to ABYC H-31 dynamic and static loads. Allows 3-1/2" or vertical travel. Developed and intended for recreational in-shore use.