The Edding 21 EcoLine permanent marker provides permanent marking on almost all materials including glass, metal and plastic. Ink is waterproof and wear-resistant on most surfaces, for long lasting intensive colour marking. Round nib with a stroke width of 1.5-3.0mm. Cap can be stored on the end of the barrel to prevent losing it. Eco-friendly product, with at least 90% of the plastic used is made from recycled material, 83% is post-consumer. Refillable. This pack contains 4 assorted colours.