Introducing the WSB QUICK MARKING SYSTEM ( 249-658), a must-have accessory for efficient organization in any industrial setting. This white marker, part of series 249, features a 5mm width for clear and bold markings. With a snap-on mating type, installation is a breeze. The black marking color stands out against any background, while the vertical marking direction ensures easy readability. UL 94V-2 rated for flammability, this marker guarantees safety in use. Perfect for labeling barrier strips and terminal blocks, streamline your workflow with the WSB QUICK MARKING SYSTEM.