Pentel FRH-B fountain pen large round head watercolor brush synthetic fiber brush

• Versatile: This Japanese Feilong fountain pen can be used for a variety of water-based paints, making it a versatile tool for artists and designers.
• Convenient: With a built-in water reservoir, there's no need to constantly dip the brush in water. Simply fill the pen body with tap water and control the amount of water with the press of a button.
• Portable: This fountain pen is easy to carry and use on the go, making it perfect for sketching and painting outside the studio.