Universal pen for use on almost all surfaces. Suitable for overhead projection. Dries in seconds, therefore ideal for left-handed users. Excellent smudge-proof and waterproof qualities on almost all surfaces. Permanent, low-odor ink. Dry Safe ink can be left uncapped for days without drying up. High color brilliancy, lightfast black. Polypropylene barrel and cap guarantee long service life. Airplane-safe with automatic pressure equalization that prevents pen from leaking on board aircraft. Stand-up Staedtler box