How do Roller Banners work?

Roller Banners comprise of 3 main parts, the first part is the banner itself. Once printed and laminated, the banner is inserted into the mechanism. The mechanism acts as the base of the banner; it has small legs that rotate out of the base to provide stability and inside is the sprung roller that the banner winds onto. Lastly there is the support pole that holds the banner up when in use. This pole attaches to both the base and the top of the banner. When not in use, the pole collapses and is stored neatly within the banner base.