Proper Size: The cyanotype paper is about 15 x 10cm or 5.9 x 3.9 Inchs,suitable for showing in a 6 Inch photo -based Science: Use the power of the to create art,put plants,flowers or other things on the paper,then press it with clear glass or acrylic board,put it under the ,then rinse the paper with water and dry it to beautiful art Good Design: Sensitive printing paper is made of paper material,not easy to or tear,light weight, note that it needs to be stored from light to avoid exposure Wide Application: art paper is a great craft activity that can be used as a science tool to create in classrooms,camps,libraries,etc. to develop children's interest and their hands-on skills,and the finished product is also beautiful decoration color:Blue Material:Paper Package Contents: 60 sheets x solar printing paper 1 sheet x acrylic plate Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed is 1-3cm.