What are Feather Flags for films and movies?

Cheap Feather Flags are widely used for films and movies outdoor advertising.  They are also popular for all kinds of business e.g. restaurants, car wash, pet grooming, real estate open house, etc. Custom feather flags with non-profits organization information, are also very popular to be stood up at site front as signs for their events. The cheap pricing is one of the main factor to make it so popular. However, the main reason is Feather Flags really works as one of the most effective outdoor advertising sign display solution.  It is often found that setting up Feather Flag Banner, could immediately increase the business traffic or visitors to the events. So what are feather flags?