- Fineliner for writing, sketching and drawing.\n- Cap off: can be left uncapped for 18 hours without drying up (Test ISO 554).\n- Airplane-safe: automatic pressure equalisation prevents pen leakage while on board aircraft.\n- Long metal tip, ideal for use with rulers and templates (e.g. STAEDTLER Mars lettering guide 572 FL).\n- Lightfast and waterproof ink.\n- Pigment ink, indelible (in accordance with ISO 14145-2).\n- Erasable when used on drawing film, no bleeding when highlighted.\n- With metal clip.\n- PP barrel guarantees long service life.\n- 9 line widths available in black ink.