This construction paper is heavy 76 lb. 100% vat-dyed sulphite paper with longer, stronger fibers than regular construction paper. Tru-Ray® Construction Paper is tough enough to take scoring, folding and curling without cracking and tearing and its superior fade-resistance keeps projects brighter and fresher longer. 50 – 9” x 12” sheets per package. Acid free for less fading and recyclable with 50% recycled fiber content.