* Stabilo Marathon * 0.38mm (F) 4Couleurs Target Group - All those who write a lot and need to rely on their pens Product features - Extra-large ink reservoir allows writing for twice as long - Special mechanism for smooth retraction of the tip - Comfortable grip zone allows fatigue-free writing - 0.38mm (F) - 4colors - Refills available in blue and black 318F1036 - Green ( 9556091128372 ) 318F1040 - Red ( 9556091126552 ) 318F1041 - Blue ( 9556091126569 ) 318F1046 - Black ( 9556091126576 )