Pacon Tru-Ray Construction Paper, 76 lbs, 12 x 18, Purple, 50 Sheets/Pack Sold as 50/PK. 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.