Patriot Docks Low Profile Stationary Pipe Holder - 2.3 Diameter The Piling Sleeve is used to attach 1-12 I.D. piling pipes to the Low Profile stationary or floating dock frames. This part is also used as a Handrail Support Bracket for mounting Handrail Vertical Supports to the Low Profile or Truss style dock frames PN10933 and PN 10934. The Piling Sleeve uses two set bolts to firmly secure the handrail components, disregard set bolts when used as a piling guide for floating docks. California Res