Dual Tip Brush Pen Set 12 PACK - Brush Tip & Fine Tip - Watercolor Markers, Blending, Shading, Calligraphy, Drawing, Vibrant Colors Great For Adult Coloring DUAL TIP  At dbm art co., we wanted to create a watercolor brush that provided extreme versatility. It's for this reason we designed the dual tip. One end of the brush is a fine tip, 2mm brush that is perfect for fine detail. On the opposite end is the broad tip, 3.5mm designed for outlining. VIEW THE RAINBOW  We didnt cut any corners when it came to providing the full range of the rainbow. With 12 primary & secondary colors, and our descriptive blending instructions, you'll be able create an endless number of colors. Practice blending in the BONUS dbm art co. E-Coloring Book that will be emailed to you after you purchase! 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 at dbm art co., 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. 100% LIFETIME MONEY BACK GUARANTEE  At dbm art co., we stand behind our product and offer a 100%, lifetime money back guarantee for the lifetime of the product. Scribble two chosen colors onto the smooth surface of plastic lid in different sections &amp; dip a paintbrush in water and blend colors together Use lightest brush pen to blend colors and then apply the new color to paper. Blend the lighter color onto a darker color to achieve the best gradient