The LUMOCOLOR 315 OHP pen is a high-quality permanent marker for overhead projections (OHP) with a thickness of 1.0 mm. With its special black ink, it ensures clear and legible labels on transparencies and other transparent materials. The pen features quick-drying ink that is smudge- and water-resistant, so your labels won't smudge or blur. Thanks to the long-lasting ink, your notes and markings retain their intensity and legibility even over extended periods. The LUMOCOLOR 315 OHP pen fits comfortably in the hand and allows for comfortable writing and drawing. Its robust tip is particularly durable and prevents unwanted fraying or breaking. This permanent marker is ideal for professional use in schools, offices, or presentations and ensures a precise and professional presentation of your content. With the LUMOCOLOR 315 OHP pen, you can capture your ideas and thoughts on transparencies quickly and easily at any time.