Pacon - Rainbow Super Value Construction Paper Ream, 45 lb, 9 x 12, Assorted - 500 Sheets Rainbow Construction Paper Ream. An assortment of 500 high-quality 9 x 12 construction paper sheets. Includes scarlet, black, orange, brown, pink, blue, sky blue, holiday green, yellow and white. An assortment of high-quality construction paper sheets. Color collated.