The WSB QUICK MARKING SYSTEM in White ( 209-509) is a convenient accessory for organizing and labeling barrier strips and terminal blocks. Designed for easy snap-on installation, this marker features a 5mm width and horizontal marking direction, perfect for displaying numbers clearly. With a non-stretchable construction and UL 94V-2 flammability rating, it ensures durability and safety in various applications. The black marking color stands out against the white background, while RoHS compliance guarantees environmental responsibility. Suitable for both commercial and industrial use, this marking system is a reliable tool for efficient organization.