Tru-Ray Construction Paper, 76 lbs., 18 x 24, White, 50 Sheets/Pack, Sold as 50 Sheet 100% vat-dyed acid-free construction paper. 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.