Package Included: 1/3pcs*Water Brush Pen Product Features: The water brush set is portable, easy-to-use, can be used anywhere, anytime, by anyone Durable watercolor paint brushes available in Bold, Medium, and Fine point size Use with water or any water washable ink The comfortable grip is great for controlled blending, shading and highlighting Easy to squeeze barrel,control the ink or water flow with just a squeeze of the barrel ( Note: Please make the water less than 2/3 of the pen's volume when filling water into the pen) Great for solid colors or powdered pigment, use with aquash watercolor crayons, markers, and pencils to spread and smooth colors.