Lumocolor® permanent pen 318 - Box of 4This wallet contains one of each: red, blue, green and blackLine Width: 2.5mm x 1.0mmAbout the Lumocolor® permanent pen 318:- 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- 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 equalisation prevents pen from leaking on board aircfraft- Xylene and toluene-free ink- Superb colour brilliancyCode: 314WP4