Pontoon 24" Flag Pole Mount & 12" x 18" US Flag. Developed with the Pontoon Boater in mind, this injection molded, black nylon mount attaches easily to the top of your pontoon railing and features a 10 presentation angle. The 3/4" diameter bright dipped anodized aluminum pole simply snaps into the base and features color matched Charlevoix flag clips.. The 24" model includes a 12" x 18" sewn U.S. Flag.