• 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