Ideal for all kinds of permanent marking, these Artline® 90 permanent markers are perfect for use on all glossy non-porous surfaces including glass boards, mirrors, whiteboards, plastic and metal. The ink is water-based and able to easily be dry-wiped from surfaces. Artline® is committed to the environment, and these markers are carbon-neutral, emphasizing sustainability in creativity. These assorted-coloured marker pens draw 2-5 mm lines and come in a conveniently pocket-sized pack that is ideal to be brought with you when you're on the go.