Ergonomic triangular barrel for effortless, fatigue-free writing Super fine 0.3 mm porous points are protected from damage by a metal-clad tip Staedtler's acid-free, non-permanent, dry safe ink won't dry out even if the pen is left uncapped Water-based ink washes out of most textiles easily Pack of 6 pens. Choose from different color combinations Pack of 6 Staedtler Triplus Fineliners Fineliner with superfine, metal-clad tip Ergonomic triangular barrel for effortless, fatigue-free writing DRY SAFE: can be left uncapped for days without drying up (test ISO 554) Airplane-safe: An automatic pressure equalisation prevents pen leakage while on board aircraft Washes out of most textiles Water-based ink With clip PP barrel guarantees long service life. Choose from various color combinations (Pack of 6 Black pens, Pack of 6 Blue pens, Pack of 6 Red pens, Pack of 3 Black & 3 Blue pens, Pack of 3 Black & 3 Red pens, Pack of 3 Blue & 3 Red pens, Pack of 2 Black, 2 Blue & 2 Red pens)