Introducing our innovative product - "AquaBrush Pen"! Manufactured exclusively by our factory, this unique brush pen is designed to cater to the needs of primary school students. With its tap water absorbing ink and water/out of ink and out of water features, this pen is truly one-of-a-kind. The brush pen is made from free-touch medium wolf's hair, ensuring a comfortable grip for young hands. Its water-filled functionality allows for easy ink refills, enabling unlimited creativity. Perfect for writing, drawing, and painting, the AquaBrush Pen is the ideal tool for young artists. Unleash your child's imagination today!