<b>ZEYAR is a professional art&crafts artwork manufacturer</b> <br>The world of science is full of many beautiful colors! Some of the colors in our world cannot be seen with just your eyes, but we are trying to give you more colors for your options. <br> <br> <b>Vibrant 18 colors:</b> <br>This size pen is ideal for the detailing and outlining you’re likely to do. <br>Made with Water-Based ink and Acrylic material tips, which can help create a colorful world, give you more options to improve your imagination. <br> <br><b>Excellent quality:</b> <br>Advanced valve-action structure inside the marker. Non-toxic, xylene free and safe to use. Conforms to ASTM D-4236 certificate. <br> <br><b>Nearly any surface for drawing:</b> <br>Suitable for rocks, canvas, paper, wood, metal, glass, plastic, leather and so on. No Fuss, No Mess & No Worries <br>Recap after use and no food contact.