Dori Pole Pennant (ONLY) Made for use on the Dori Pole, these dynamic, flowing pennant flags are up to 14 feet long and a great way to draw attention to your outdoor event or location. You will need to purchase Dori Pole separately for Complete Kit. They’re lightweight, portable, and flex with the wind. They are also an effective and humane bird deterrent perfect for outdoor spaces, boat lifts, docks, and anywhere you want to keep bird mess to a minimum.