THE BEST SIDE OF FLYER PRINTING

I just have a matter about how to order on the platform. What's the measurement of an A5 document (fifty percent of an A4) on your own System? I wish to get a double sided flyer. I would like to confirm that "Comprehensive Shade" around the back again facet means this? Thanks! one SolutionWill come gloss coated on both sides. Because of its thickne