Our quick release levers allow easy removal for storage, and low-profile deck ring mounts provide minimal interference on your deck space. Complete system includes: Deck ring, socket base, and table mounting socket. Marine grade polymer components resist corrosion. Stanchion tube is anodized aluminum with a ribbed finish and tapered at both ends. Stanchion tube height: 25-1/2″, stanchion tube diameter: 2-1/4″. Installed height: 27″ – deck surface to table top underside.