Sail banner flags are a high impact portable way to advertise. The giant portable sail banner is great for events and easily put together. It can extend up to heights of 4m tall and is a popular tool at festivals and event. easily seen from a distance it can be used for marking important checkpoints at events. The Portable sail banner is a miniature builders flag pole, with the portability of the feather & teardrop flags. The portable sail banner can be attached to a variety of bases. It’s actually one of the most versatile flags for this reason.