Introducing our innovative {Tap Water Absorbing Ink and Water/Out of Ink and Out of Water, Free of Touch Medium Wolf’s Hair Brush Pen which Could Water-filled, Adding Ink, Water-written for Primary School Students Use}. As a factory committed to excellence, we bring you this unique brush pen designed specifically for budding artists. This pen effortlessly absorbs tap water and ink, allowing children to explore their creativity limitlessly. With a water-filled design, it eliminates the need for frequent refills. Let your child's imagination flow with our easy-to-use brush pen, perfect for primary school students.