Hi there Edelgado, Thank you for choosing Following Working day Flyers on your printing needs. We have numerous types of cardstocks for flyers. Seemingly, we do not need a water-resistant materials although we have drinking water-resistant cardstock. The size of the A5 piece of paper is 5.eighty three x 8.27 https://rowanasiwn.blogofoto.com/63314833/not-known-factual-statements-about-flyer-printing