Premium Quality: The sun print papers are made of high-quality wood pulp paper, which is sturdy, washable, and not easy to break/tear. Sun art paper is sensitive to ultra-violet light, and its result of imaging, including uniformity and sharpness, all have good effects. Easy to Use: Place on the cyanotype paper; put your paper and the plastic tool; expose the paper in the sun for 5- 15 minutes; rinse the paper in water for about 1 minutes then dry it. And beautiful artist work is done So easy to do it Great DIY Project: The process of sun print is simple and fun. It can cultivate kid's imagination, creativity, hands-on skill, and develop their interest in scientific experiments. For adults, sun printing is a great activity to do with kids or friends, enjoying time together. Using Steps: Step 1: Place on the cyanotype paper; : Put your paper and the plastic tool; Step 3: Expose the paper in the sun for 5- 15 minutes; Step 4: Rinse the paper in water for about 1 minutes then dry it. For sunlight printing (blue is the finished color) Colour:As Shown Material:Paper Size:A5 Package Contents: 60x Sun Print Paper 1x plastic sheet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.