Ideal for detailed colouring, drawing and writing, this Graffico fineliner pen contains water based, non-toxic ink, which is ideal for classroom use. The nylon fibre tip writes a bold 0.6mm line width. The fineliner pen also features a large ink reservoir for long lasting use and a ventilated safety cap. This pack contains 36 pens with 3 of each of the 12 assorted ink colours.