The BX4 Lumocolor 313 OHP pen is a high-quality permanent marker with a line width of 0.4 mm. Its special ink makes it particularly suitable for labeling overhead transparencies (OHP). The pen is highly lightfast and waterproof, ensuring permanent markings. With the BX4 Lumocolor 313 OHP pen, you can draw clean, precise lines that are easily legible even from a distance. Thanks to the special tip, the pen sits comfortably in the hand and provides a pleasant writing experience. The permanent marker is available in black and is ideal for use in the office, at school, or for presentations. With the BX4 Lumocolor 313 OHP pen, you have a reliable writing instrument at hand that will be a great help when labeling transparencies and other materials.