The Artline 400XF Paint Marker has a crush resistant aluminium barrel and a pump valve action paint flow control to ensure consistent output of ink through its usage, what ever the surface. Available in 4 industry standard colours with an acrylic fibre bullet nib with a 2.3 mm writing width which can be easily seen. The Artline 400XF range of paint markers contains a solvent based ink which is Xylene free, are fast drying, highly water and fade resistant and are ideal for both indoor and outdoor applications, suitable for use on metal, glass, plastics (not EPS), ceramics, wood, rubber, laminates and smooth stone or rock. Ideally, within the mining industry, these pens are suited for marking drill cores which tend to have a smooth surface, allowing geologists to ID the sample as well as write on other notes. These markers are perfect where indelible marking is required and they are extremely weather resistant, supplied in a packet of 12).