For watercolor painting on watercolor paper, Marabu Graphix Aqua Pens provide high-quality, lightfast, waterbased pigment ink in a range of colors. Use the contour tip and flexible brush tip to apply color, then use a wet brush to spread it. Low-odor formula. Note: Never dip into water. - Marabu Graphix Aqua Pen - Mega Mash, Set of 12Marabu Aqua Pen Graphix, MEGA MASH 12 CT - Includes one each of Black, Lemon, Red Orange, Cherry Red, Light Pink, Plum, Antique Green, Avocado, Dark Green, Aquamarine, Petrol, and Dark Brown.