Pacon Tru-Ray Construction Paper, 76 lbs. , 50 Sheets Assorted Colors/Pack: * Pacon Tru-Ray Construction Paper * Heavyweight 100 percent 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