Pacon Tru-Ray Construction Paper, 34kg., 12 x 18, Sky Blue, 50 Sheets/Pack Heavyweight 100% vat-dyed sulphite with longer, stronger fibres. Tough enough to take scoring, folding and curling without cracking or tearing. Superior fade-resistance keeps projects brighter longer. Acid-free for archival quality. Size: 12 x 18; Paper Colour(s): Sky Blue; Paper Weight: 34kg; Sheets Per Unit: 50. Superior fade-resistance keeps projects brighter longer.