Universal felt for most surfaces
Suitable for overhead projection
Excellent water and abrasion resistance on most surfaces
Dries in seconds, ideal for left-handers
Low odour permanent ink
Ventilated barrel and cap (ISO 11540 and BS7272-1/2) with polypropylene clip for longer life
DRY SAFE ink: the pen can remain open for several days without drying out (ISO 554 test)
Aircraft safety: automatic pressure balancing prevents ink from leaking
Superb colour brilliance
Line width S - superfine, approx. 0.4 mm