Pentel Arts Pocket Brush Pen with Refills, 1 Pen and 2 Refills & Aquash Water Brush Pen (Medium Point) Profesional Arts Value Set (With Values Japan Original Discription of Goods) Filled with water-based pigment inks and The ink flows easily and dries quickly Create fine or broad lines Portable and refillable It becomes possible because thin, extend or a variegated expression uses a water brush They are very inexpensive set goods