Heavy 76 lb. 100% vat-dyed sulphite with longer, stronger fibers. Tough enough to take scoring, folding and curling without cracking and tearing and it's superior fade-resistance keeps projects brighter and fresher longer. Asked for by art teachers these new Tru-Ray® Construction Paper Assortments include 10 cool colors. Available in 12" x 18." Acid free for less fade. 50% recycled fiber content and recyclable.