This ink is a refill for the white brush pen which features soft bristles that can produce a wide range of thick and thin lines, making it a great choice for calligraphy and other art.Its extra fine tip is perfect for drawing highlights and fine details, as well as correcting stray lines. You can draw over the dried ink with alcohol markers and other pens. Alcohol markers used over the white ink will leave lighter marks than usual, which lets you easily add softly colored highlights to your work. The pen can also be used over ink to make corrections or add highlights. The pen's water-based pigment ink is quick drying and water resistant.