Features: 1.Large capacity, more durable, and easy to clean, just clean it with water after used 2.6 kinds of pen tips to meet the requirements of drawing, suitable for art students, amateur and professional artists 3.Refillable water brush pen for color drawing, painting, illustration and calligraphy 4.This water brush pen can be filled with water to blend, or you can add your favorite ink to make your own portable brush 5.Made with high quality nylon hair brush tips that holds its shape and does not spray, spread or smear specification: Large capacity, more durable, and easy to clean, just clean it with water after used. 6 kinds of pen tips to meet the requirements of drawing, suitable for art students, amateur and professional artists. Refillable water brush pen for color drawing, painting, illustration and calligraphy. This water brush pen can be filled with water to blend, or you can add your favorite ink to make your own portable brush. Easy to use, simply to squeeze barrel to easily control the ink or water flow. To use, blend with water, add ink to barrel and enjoy (Note: Please make the water less than 2/3 of the pen's volume when filling water into the pen). Made with high quality nylon hair brush tips that holds its shape and does not spray, spread or smear. s: Pen tip material: nylon Pen rod material: plastic Color: white transparent Size: 130 mm /5.12inch, 180 mm/7.09inch Package Included: 1 x 6pcs/set Water Brush Note: 1. The color of brush cap may be random, thanks for understanding. 2. For manual measurement, please allow 1-3cm error. 3. The color may not reflect the actual color due to different displays. Thank you for your understanding.