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. Assortment includes Black and White which are the most frequently used colors. Acid free for less fade. Recyclable. Sheets measure 12" x 18" . Each pack includes 72 sheets.