This hard-bound sketchbook features high performance, pH neutral, lignin- and chloride-free paper. The heavy-weight 180 lb. paper has a smooth white surface that is suitable for all dry media and ink. With both internal and surface sizing, it will accept light washes, wet media and watercolor as well. Details: Black 9" x 6" 100 lb. / 150gsm 26 sheets PH neutral, lignin- and chloride-free paper Hard-bound