Permanent universal pen F

- 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
- Lightfast colours: black, brown
- Weatherproof colour black
- Stand-up STAEDTLER box
- PP barrel and cap guarantee long service life
- DRY SAFE – can be left uncapped for days without drying up (Test ISO 554)
- Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft
- Xylene and toluene-free ink
- Superb colour brilliancy
- Lightfast colour black
- Line width fine approx. 0.6 mm
- Refillable