The WSB QUICK MARKING SYSTEM ( 209-968) offers a convenient solution for organizing and labeling barrier strips and terminal blocks. Designed for easy snap-on installation, these white markers feature vertical black symbols, ensuring clear and visible identification. With a width of 5mm, they are suitable for various applications in industrial settings. Meeting UL 94V-2 flammability rating standards and being halogen-free, they prioritize safety and environmental responsibility. Perfect for streamlining cable management and maintenance tasks, these markers are a must-have accessory for any professional electrician or technician.