With these professional quality water brush pens you can easily create your next watercolor masterpiece and you ll have a great time accomplishing it. These watercolor brushes are designed to have excellent flexibility as you don t have to worry about a water pot. They are easy work with no matter what your experience with watercolors is, and you won t ever have to deal with spills. They re also very easy to clean and maintain and you can even put them in the dishwasher. Fill them with ink or water to blend with peerless watercolors or other watercolors. Three tip choices give you excellent flexibility with your artwork, and water is supplied to the tip with a leak proof valve.