- Extra soft tip does not damage sensitive CD/DVD/BD surfaces\n- Ink does not penetrate into data storage layer\n- Excellent smudge-proof and waterproof qualities on almost all surfaces\n- DRY SAFE – can be left uncapped for days without drying up (Standard atmosphere according to ISO 554)\n- Dries in seconds, therefore ideal for left-handed users\n- Superb colour brilliancy, low-odour\n- Lightfast colour black\n- Stand-up STAEDTLER box\n- Airplane-safe - automatic pressure equalization prevents pen from leaking on board aircraft\n- PP barrel and cap guarantee long service life\n- Line width S - superfine (approx. 0.4 mm)