Dry Safe-can be left open for days without drying out (ISO 554 test) - Universal marker for overhead projection and almost all surfaces; also suitable for CDs and DVDs - Exceptionally smudge- and water-resistant on almost all surfaces - Dries in seconds, making it ideal for left-handers - Permanent, low-odor ink - Excellent color brilliance - With clip - Airplane-safe-automatic pressure equalization prevents the pen from leaking on airplanes - Xylene- and toluene-free ink