Suitable for all types of permanent marking, the alcohol based ink in the Artline 780 is water resistant, making it ideal for use both indoors and outdoors. The fine nib makes it suitable for marking plastic plant containers, labels/tags, metal, glass, wood etc | Instant drying alcohol based ink with low odour | Ink is Xylene free and ROHS compliant | Slim pen style barrel | Plastic tip with a 0.8 mm line width