The fine nib of Berol Colourfine Pens delivers a crisp 0.6mm line that provides fine detail for illustration or colorful writing tasks. With washable ink, it's easy to wash out of clothing and most porous surfaces. Designed for durability with a fibre tip and 14 day cap off life. This pack of 288 pens, in 12 assorted colours is ideal for use in academic settings.