Canson XL Marker is a semi-transparent, acid-free white paper that is suitable for drawing or design from rough sketch to finish form. This paper works beautifully with pen, marker and pencil. Alcohol (ProMarkers) or solvent markers won't bleed through the barrier. Manufactured using French made cobra paper to near drawing quality standards, this paper works beautifully as a guide paper for tracing as well.Thickness - 70 GSMTexture - Extra SmoothSize - A3(29.7 x 42 cm OR 11.7 x 16.5 inches)Pad of 100 Extra Smooth Sheets