The Artline 579 Whiteboard Marker is perfect for anyone who frequently uses a whiteboard at school, in their office or even just at home. The low-odour ink produces bold colours that can be seen from the back of the room. Thanks to the dry safe ink, this marker can last 48 hours with the lid off before drying out. This marker has a 2.0 mm nib on the tip and 5.0 mm when you hold it on an angle. It writes bold, clear lines that can be seen from the back of the room. This ink is low-odour, xylene free and RoHS compliant. The dry safe ink allows you to leave the cap off for up to 48 hours without it drying out. You can use this marker on your electronic whiteboard. This marker has black ink.