RENDR No Show Thru Sketchbook - This revolutionary paper allows you to use 100% of the sketchbook. This sketchbook is your legacy, your history, your thought process documented. No more tearing out the next page. No more limitations to what types of media you use in your sketches. We tried this paper with Sharpie markers, watercolor and acrylic paint, oil based paint markers, even spray paint- and it will not bleed through. Even when working on both sides of a sheet, it still does not bleed through! You have got to try it. Acid and lignin free. 110lb/180gsm. Hardcover sketchbooks have 48 sheets of paper (96 pages).