This is a 145 gsm sketching paper, with a very smooth surface and fine grain, guaranteeing excellent colour absorption. With its natural white tone is fantastic for strong contrasts and high levels of vividness. This sketch paper is praised for its absorption capacity that prevents pigments from dropping off. Well suited with Colour Pencils, Charcoals, Pens, Pastels etc. Acid free and age resistant. These sketchbooks come in a set of two.