Premium Fineliner for writing expressive and effective, Thickness of about 0.8 mm. Colour of purple ink. The water based ink is waterproof according to ISO 14145-2. With rubber-coated housing for a secure grip and relaxed without fatigue of the hand. The cutting edge has been stabilized by a stainless steel tube ensures the feeling of smooth, slippery writing, suitable for working with a ruler and template. The model cap-off can be left uncapped for 3 days without drying out. The cap with clip is reversible.