The Collection from Hahnemuhle sets the new standard for premium watercolor papers. This 9.4x12.6" Hahnemuhle Watercolor 640 pad contains 10 sheets of natural white, cold pressed, 640 gsm, watercolor paper. A carefully chosen variety of cotton and the best raw materials offers extremely strong fibers and incomparable purity. Able to withstand demanding watercolor techniques, the fibers do not lift, rub off or loosen when applying multiple layers of color, or when using masking fluids and tapes. Vegan, age resistant, and acid-free.