Swivl-Eze is the #1 supplier of 3/4" pin seating hardware. The " system give you outstanding economic performance; The design is proven by decades of experience; Posts are available as fixed, manually adjustable, or power adjustable; Seat mounts, posts, and bases are available in steel, aluminum, or stainless steel; The Swivl-Eze Difference The patented Lock'N-Pin system leads the industry in safety; Lock'N-Pin prevents unintentional detachment for seat mounts, posts, and bases; Lock'N-Oin products exceed ABYC Standard H31.6.1;