Aquastroke Water Brush Pens, Artist Travel Watercolor Paint Brushes, for Water-Soluble Colored Pencils, Inks, Water-Base Markers, Plein Air Paints, Portable [Set of 4 Assorted Sizes]
Aquastroke pens have their own water basin, artists need not worry about spills or messes-- making these pens are Perfect For plein air
Featuring the highest Quality white nylon brush tips combined with a hollow plastic basin that can be filled with water, ink, or a very thin Paint or Pigment, you can control the ink or water flow with just a squeeze of the barrel
Cleaning: You can clean the brush pen completely by squeezing gently and working the tip with your fingers until the water comes out clear