Mr. Pen watercolor brush pens come in a set of 12, featuring a variety of brush tips for precise control and effortless blending in watercolor painting. Made with durable, high-quality nylon bristles, these brushes retain their shape while providing smooth, consistent strokes for beginners and professionals alike. Each brush has a refillable water reservoir, allowing for easy blending and controlled water flow, eliminating the need for a separate water cup. The versatile brush tips range from fine to broad, making them perfect for detailed artwork, calligraphy, lettering, and large washes of color. Ideal for artists, students, and hobbyists, these watercolor brush pens provide a mess-free and portable painting experience for use at home, school, or on the go.