Pigment liner 308 Fineliner. Fineliner for writing, sketching and drawing. Pigment ink, indelible (in accordance with ISO 14145-2), lightfast, waterproof on paper. Erasable when used on drafting paper, no bleeding when highlighted. Long metal tip, ideal for use with rulers and templates. PP barrel guarantees long service life. Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft. Line width approx. 0.5 mm