Feather flags are a great height for garnering attention outdoors. Custom printed on polyester mesh by the process of dye sublimation, inks heavily saturate the material to create a "bleed-through" visual effect for single-sided prints, and double-sided prints are finished with a silver-gray blocker that lays between.
Choose a spike base for outdoor use only. For indoor/outdoor choose a X-style base (be sure to add weights when you use it outside!)