Made almost entirely from eco-friendly bamboo fibers,Hahnemühle Bamboo Hardbound Sketchbooks feature 64 sheets of warm white paper ideal for drawing and sketching with a variety of dry media. Featuring a fine grain texture for superior color adherence and excellent contrast, sheets are acid-free and archival with a weight of 50 lb (105 gsm). - Hahnemühle Bamboo Hardbound Sketchbook - 11.7" x 8.3", 128 Pages, 50 lbHahnemuhle Bamboo Sketchbooks, 8.27 X 11.69 -