The flag of Australia is a defaced Blue Ensign: a blue field with the Union Jack in the canton (upper hoist quarter), and a large white seven-pointed star known as the Commonwealth Star in the lower hoist quarter. The fly contains a representation of the Southern Cross constellation, made up of five white stars – one small five-pointed star and four, larger, seven-pointed stars. There are other official flags representing Australia, its people and core functions of government.
Roll up banner is one of the mini banner, it can be automatic roll up, used repeatedly, easy to carry, light packaging and waterproof.
It is used to promotion, advertising, election and competition etc.