This paper is an acid free, lignin free heavyweight cotton poly blend. This elegantly textured fine art canvas features a bright white point, exceptionally high Dmax and a wide color gamut. The canvas base is enhanced with elastic polymers providing high tensile strength and flexibility for gallery wrap stretching without cracking. Sheet/Roll Size: 13" x 20 ft; Paper/Media Thickness (mil): 23 mil; Paper/Media Color(s): White; Color Family: White.