Permanent marker, black. Line width: approximately 2 mm or 5 mm. Smudge-proof and water-resistant on almost all surfaces. Lightfast and low-odor. Takes several days to dry out without a closed cap. Thanks to automatic pressure equalization, it does not leak on airplanes. The Lumocolor Permanent Marker 350 is excellent in being smudge-proof and water-resistant on almost all surfaces. It dries in seconds, making it ideal for left-handed users, with color-intensive, low-odor ink that is lightfast. The barrel and cap made of PP ensure a long lifespan, and it can be left open for days without drying out. The automatic pressure equalization prevents the pen from leaking on airplanes.