The Staedtler triplus fineliner has an ergonomic triangular shape for relaxed and easy writing. The fineliner is dry safe which means it can be left uncapped for days without drying up. The water-based ink washes out of many textiles. It has a superfine metal-clad tip and a linewidth of approximately 0.3 mm. The stand-up Staedtler box makes it ideal for school and office use.