Set of 10 Triplus Fineliners in a smart desk box. Fineliner with superfine, metal-clad tip. Ergonomic triangular barrel for effortless, fatigue-free writing. Water-based ink. Washes out of most textiles. An automatic pressure equalization prevents pen leakage while on board aircraft. Can be left uncapped for days without drying up (test ISO 554). Line-width 0.3 mm.