The spec for the pop banner is here http://www.printdesigns.com/roller-…tands.html
Size: 850mm wide x 2150mm page size.
Resolution: We suggest no less than 150dpi at full size. Please increase resolution accordingly to allow for any enlargement should you set artwork at a reduced-scale.
Colour Mode: Supply artwork in CMYK mode only
Important Info: The bottom 200mm of the 2150mm page height is non-viewable and you should ensure that all viewable information is raised up, above this region of the artwork. We suggest that the background colour or any background images run all of the way into the non viewable region, down to the bottom of the page.
Files types supported: Please save files as JPG, Tiff or PDF