WSB QUICK MARKING SYSTEM in White ( 209-407) is a convenient and efficient solution for labeling barrier strips and terminal blocks. With a snap-on mating type, installation is a breeze. The non-stretchable marker boasts a halogen-free design and UL 94V-2 flammability rating, ensuring safety and compliance. Marking is simple with a 5mm width and horizontal direction, perfect for numbers. Ideal for organization and identification in industrial settings, this marker is a must-have accessory for any professional. Upgrade your workflow with the WSB QUICK MARKING SYSTEM.