Heavyweight 100 percent 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. Color Wheel assortment is ideal for teaching color theory and color mixing and includes: Yellow, Gold, Orange, Festive Red, Holiday Red, Magenta, Violet, Purple, Blue, Turquoise, Holiday Green, and Brilliant Lime. Acid free for less fade. Project instructions are printed on the back of the topsheet. Recyclable.