The GDD dot pen is a practical writing instrument that impresses with a line width of 0.5 mm. It is ideal for precise drawings, notes, and other writing tasks. The crystal blue ink ensures clear and vibrant lines, appreciated in both everyday and professional settings. At the end of the casing, there is an eraser that makes correcting mistakes easier, thus enhancing user-friendliness. This product is offered as a set with 12 replacement refills, available under the designation HA 4129 21P1-3. The automatic features of the dot pen allow for effortless refilling of the ink, simplifying handling and increasing efficiency. The dot pen is an excellent choice for anyone who values quality and functionality.