Heavyweight 100% vat-dyed sulphite with longer, stronger fibers. Tru-Ray® Construction Paper is tough enough to take scoring, folding and curling without cracking and tearing. Its superior fade-resistance keeps projects brighter and fresher longer. Acid free for less fade. 50% Recycled fiber content and recyclable. Sheets measure 12" x 18". Each pack includes 50 sheets. Sold as 3 packs for a total of 150 sheets.