Color-Coding Coordination – Set includes bright, vibrant water-based markers that deliver eye-catching content and long-lasting appeal.For us, art is an expression of the human experience. That’s why we work to make our art supplies accessible to all people.Art Marker pens are made of strong pigments allowing you to draw at least 300 meters.Does not penetrate through the paper, the color is bright and lasting, stronger than the traditional watercolor pen, it does not fade.Water based ink, odorless, non- toxic, quick dry, smooth writing and uniformly, it is very safe when posting pictures and making artworks.