Use with our locking stern light base featured on next page. Make use of your stern light base during the day. This 3/4″ diameter telescopic flag pole mounts into most 2-prong stern light bases. Ideal for dive, national and nautical flags. Telescoping feature allows the pole to be raised for maximum visibility. Clam pack with or without 12″ x 18″ reinforced nylon U.S. Flag. Recommended speed Clam shell. Telescopes from 26″ to 48″ to fit most flags. Comes with flag attachments. Base Not Included.