This set includes 30 Ecoline Brush Pens in vibrant primary colors. The Brush Pen stands out with its flexible tip and the wide range of brilliant colors, thanks to its pure, dye-based formula. You will achieve the best results when using the transparent colors on white or very light paper. If you wish, you can easily reduce the intensity of the colors: dilute them with water or use the Brush Pen Blender. The pens are perfect for hand lettering, watercolor drawings, quick sketches, and color accents.