Garelick Detachable Stanchion Plate 75056-GS The Garelick Detachable Stanchion Plate mounts to the deck surface for base attachment.Features: Allows base and seat to be removed; 9.25" diameter machined anodized aluminum; Adapts to all models, simply enlarge 6 base holes to 7/16" diameter; Adds reinforced safety and comfort to pedestal installations; Includes: Plate; 3 Stainless cap screws; Allen wrench; Instructions