RENDR No Show Thru Paper from Crescent Cardboard allows you to use 100 percent of the sketch book; no more limitations to what type of media you use in your work and no more tearing out the next page. Our patented paper will not allow any bleed or show through from the other side of the paper, no matter what media is used! Even oil paint and juicy ink markers! 110 lb white heavy weight sheets. Acid and lignin free.