Extra soft tip does not damage sensitive CD/DVD/BD surfaces Ink does not penetrate into data storage layer Excellent smudge-proof and waterproof qualities on almost all surfaces Dries in seconds, therefore ideal for left-handed users High colour brilliancy, low-odour Black is lightfast 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 S - superfine, approx. 0.4 mm Housing made of 97% recycled plastic