Contains:15 - 20 x 30cm sheets and 1 - 20 x 30cm acrylic overlay. Developed by educators at the Lawrence Hall of Science, Sunprints encourage an interest in the photographic process using only sun, water, and a bit of imagination. Place a fern, flower, or other object on the special paper and set it in the sun briefly. Then rinse the paper in water and watch as a beautiful long-lasting image appears.