Japan Chain Store Produce 36 Pack Dual Tip Watercolor Brush Pen Set- Brush Tip & Fine Tip, All Levels of Experience, Blending, Shading, Calligraphy, Drawing, Rich, Vibrant Colors DUAL TIP: The dual tip a watercolor brush that provided extreme versatility. One end of the brush is a fine tip, 3mm brush that is perfect for fine detail. On the opposite end is the broad tip, 5mm designed for outlining. VIEW THE RAINBOW: We didn't cut any corners when it came to providing the full range of the rainbow. With 36 primary & secondary colors, and our descriptive blending instructions, you'll be able create an endless number of colors. CLEAN AS A WHISTLE: We understand an artist will blend multiple colors to create new colors, and in doing this, the watercolor brush pens can get dirty. Easy to clean after your art is completed, simply draw on a clean paper to witness the vibrant, rich colors come back to the watercolor brush pen. NON-TOXIC: Safety is extremely important for us and it's for this reason that we designed our Watercolor Brush Pens to be non-toxic, odorless, vaporless, acid-free, & unscented with natural ink.