STAEDTLER triplus fineliner has a superfine, metal-clad tip. Designed with an ergonomic triangular barrel for effortless, fatigue-free writing. The unique DRY SAFE feature of the water-based inks enables pens to be left uncapped for days at a time without drying up. Line width approx. 0.3 mm. Stand-up STAEDTLER box transforms into a pen stand. Set of 20 colors.