This set of 20 watercolor brush pens is perfect for any artist. The colors are vibrant and the brush tips allow for easy blending and layering. In addition, the set comes with a bonus water refill marker. The pens have a lock sealing mechanism to prevent leakage and maintain freshness. These pens are great for various art projects such as drawing, lettering, and coloring. They are suitable for both beginners and professionals. The brand, Colorful Art, is known for their high-quality art supplies. This custom bundle is a great value and a must-have for anyone who loves to create with watercolors.