You've got a label to put on a dark bin, a glass tank, or a plastic crate and your usual marker just won't stick. Or it soaks right through the paper underneath. This fixes that. The Staedtler Lumocolor Omnigraph sits opaque on almost any surface — paper, plastic, metal, glass, wood, leather, stone — and stays put. Waterproof once dry. No bleed-through. 12 mm diameter gives you a bold, visible line from across the workshop or warehouse floor. Box of 12, so your whole team's got the same colour when they need it