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. Black & White Assortment includes Black and White which are the most frequently used colors. Acid free for less fade. Recyclable. Measures 12″ x 18″. Each pack includes 72 sheets. Sold as 5 packs for a total of 360 sheets.