The Lumocolor 316 OHP pen is a high-quality permanent marker, specifically designed for labeling overhead transparencies. Its special ink allows for quick drying and clear, high-contrast writing. The felt-tip pen has a line width of 0.6 mm and is particularly well-suited for fine details and precise labeling. The black ink is waterproof and lightfast, ensuring permanent markings. The pen sits comfortably in the hand and provides a pleasant writing experience. Ideal for use in the office, at school, or at home.