Canson xl Dessin Noir Spiral Pad contains deep black paper which is acid-free, ideal for creating contrasts. Canson XL Black paper adapts well to heavy work, and is double-sided, it is also suitable for sketching and drawing. The smooth side is ideal for felt and marker pens whilst the lightly grained side is good for pencil and pastels. This spiral pad contains 40 sheets of 150 gsm deep black paper.