Hello there Edelgado, Thanks for choosing Following Day Flyers for your printing wants. We have lots of cardstocks for flyers. Seemingly, we do not have a waterproof material even though we have h2o-resistant cardstock. The dimensions of the A5 piece of paper is five.83 x 8.27 inches. Nevertheless, this dimensions https://zioncqdqe.goabroadblog.com/31324086/the-2-minute-rule-for-flyer-printing