Traditional flags, in absence of wind, automatically fold.
On the contrary with strong wind they roll up on the bar that holds it up. In these conditions the advertising message on it is not readable, whilst in case of weak and constant
wind it has a fairly good visibility.

For Banners (Anti Roll-Up System) Both natural and synthetic fabric normally loose up (in the courseof time) due to the weather and the banner become slack in a few days.
