Noris Club 326 Fibre-Tip Pens Plastic ink barrel. Sturdy, pressure-resistant tip. Writing fluid type: Water-based ink with food dyes, washable. Efficient for ecology, DRY SAFE - can be left open for days without drying out (test ISO 554). Cap with breathing air duct according to ISO 11540 and BS 7272-1/2. Line width: approx. 1.0 mm. EN71 - CE. Writing colour: brown. Box of 10 pcs