Tru-Ray's heavy, 100% sulphite construction paper has been a favorite for years! Tough enough to fold without cracking or tearing. Vat-dyed sheets have color throughout and superior fade-resistance for vivid paper projects. Made with 50% recycled paper. Acid-free. Combo case includes 1600 sheets of 9x12" and 400 sheets of 12x18", for 2000 total sheets. Colors include yellow, orange, festive red, pink, purple, blue, festive green, dark brown, white and black.