Introducing the WSB QUICK MARKING SYSTEM ( 209-420), a must-have accessory for efficient and organized labeling. This white marker, part of the Series 209, features a snap-on mating type for easy application. With a non-stretchable design and halogen-free composition, it guarantees safety and durability. The black marking color stands out clearly against any background, meeting UL 94V-2 flammability standards. Perfect for horizontal marking, this 5mm wide marker strip is ideal for labeling numbers on barrier strips, terminal blocks, and connectors. Stay organized and compliant with the WSB QUICK MARKING SYSTEM.