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 9" x 12". Each pack includes 144 sheets.