Lumocolor® permanent duo 348. Double ended permanent marker with two bullet tips. Handy-sized marker with two tips for writing and marking on almost all surfaces. Excellent smudge-proof and waterproof qualities. Dries in seconds, therefore ideal for left-handed user. Colour-intensive, low-odour. Black is lightfast. Locked tip. 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. Line width F approx. 0.6 mm and M bullet tip approx. 1.5 mm. Especially for writing on gaffa tape