• Fineliner for writing, sketching and drawing • Pigment ink, indelible (in accordance with ISO 12757-2), lightfast, waterproof on paper • CAP OFF - can be left uncapped for at least 12 hours without drying up (only black ink) • Erasable when used on drafting paper (only black ink), no bleeding when highlighted • Long metal tip, ideal for use with templates (from line width 0.1 mm) and rulers (from line width 0.2 mm) e.g. Mars 572 FL • PP barrel guarantees long service life • Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft • Available in stand-up STAEDTLER box