Keep your wiring organized and easily identifiable with the WSB QUICK MARKING SYSTEM. This white marker, part of series 209, offers convenient snap-on installation for efficient use. Its non-stretchable design ensures durability, while its halogen-free construction prioritizes safety. With a vivid red marking color and vertical direction, this 5mm wide marker is perfect for clear numbering on barrier strips and terminal blocks. UL 94V-2 rated for flammability, it guarantees reliable performance in any setting. Upgrade your cable management with this essential accessory, perfect for professionals in the electrical industry.