The WSB QUICK MARKING SYSTEM ( 209-403) in White is a convenient and efficient solution for labeling in any industrial or commercial setting. Part of the 209 series, this Marker accessory features a Snap-On mating type for easy installation. With a non-stretchable design, it ensures durability and longevity. Halogen-free and boasting a UL 94V-2 flammability rating, it prioritizes safety. The black marking color stands out clearly, with a 5mm width for easy visibility. Horizontal marking and number-based identification make organization a breeze. Perfect for use with Barrier Strip Jumpers, Covers & Markers, Barrier Terminal Blocks, Strips & Accessories, and Connectors, this product is a versatile addition to any workspace.