Staedtler Lumocolor 317 Blue Permanent Pen Medium Tip

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
Weatherproof colour black
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
Superb colour brilliancy
Line width medium approx. 1.0 mm