"Contains twelve 4"x4" sheets of sunprint paper and a Plexiglas overlay. - Contains twelve 4" x 4" sheets of sunprint paper and a Plexiglas overlay. This Plexiglas overlay helps press objects such as leaves flat in contact with the paper to insure a good print. 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. Developed at the Lawrence Hall of Science, Berkeley, California Art Craft Kit Type: Sunprint Kit Number of Pieces: 12 Included Components: Paper Subject Character: Flower Age Range Description: Kid ASIN: B00D3GS9EW Material Type: Paper,Acrylic,Photosensitive Product Dimensions: 3.94 x 0.08 x 3.94 inches; 1.76 ounces Is Discontinued By Manufacturer: No Item Height: 10 centimeters Manufacturer: Lawrence Hall Of Science Style: Flat Seasons: All Seasons Special Feature: Sun-sensitive paper photographic process Item dimensions L x W x H: 3.94 x 0.08 x 3.94 inches Color: Blue Item model number: W110 Material: Paper,Acrylic,Photosensitive Scale: quarter-size Brand: Gardener's Supply Company Brand Name: Gardener's Supply Company Product Style: Flat Theme: Nature Additional Features: Sun-sensitive paper photographic process Item Dimensions: 3.94 x 0.08 x 3.94 inches Age Range (Description): Kid Paint Type: Watercolor"