- Excellent smudge-proof and waterproof qualities on almost all surfaces
- Dries in seconds, therefore ideal for left-handed users
- Colour-intensive, low-odour
- Lightfast (black and green for over 10 years on paper)
- Black and green are weatherproof
- Locked tip
- Stand-up STAEDTLER box
- PP barrel and cap guarantee long service life
- DRY SAFE – can be left uncapped for days without drying up (Standard atmosphere according to ISO 554)
- Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft
- Xylene and toluene-free ink
- Refillable