Staedtler Triplus Fineliner 334 SB20 Desktop Box – 20 Assorted Colours. 

Fibre-tip pen with sturdy, pressure-resistant tip. Line width approx. 1.0 mm. Dry Safe Ink – can be left uncapped for days. Washes out of most textiles.    

Ergonomic triangular barrel for effortless, fatigue-free writing. Perfect for mindmapping, cartooning and illustrating handouts