Heavyweight 100% vat-dyed sulphite with longer, stronger fibers. Tough enough to take scoring, folding and curling without cracking or tearing. Superior fade-resistance keeps projects brighter longer. Acid-free for archival quality. Cool & Warm Assortments. Sheet/Roll Size: 12 x 18; Paper Basis Weight (lb): 76 lb; Paper/Media Color(s): Assorted Cool/Warm Colors; Color Family: Multicolor.