The universal marker that doesn't dry out! 

Universal refillable pen for overhead projection and almost any surface. 

DRY SAFE: can remain open for days without drying out (ISO 554 test). 

Airplane-safe automatic pressure compensation prevents the pen from leaking in the plane. 

Excellent wipe and water resistance on almost all surfaces. Dries in seconds. Low odor, xylene - toluene free ink with extremely brilliant colour.

Colour: Blue