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. Available in 28 stay bright colors. Acid free for less fade. 50% recycled fiber content and recyclable. Measures 12" x 18". Each pack includes 50 sheets. Grade PK+