Universal pen for use on almost all surfaces. Suitable for overhead projection. Excellent smudge-proof and waterproof qualities on almost all surfaces. Dries in seconds, therefore ideal for left-handed users. Permanent, low-odour ink. Black is lightfast. PP barrel and cap guarantee long service life. DRY SAFE – can be left uncapped for days without drying up. Airplane-safe – automatic pressure equalization prevents pen from leaking on board aircraft. High colour brilliancy. Line width S – superfine, approx. 0.4 mm. Refillable with refill station 487 17. Housing made of 97% recycled plastic.