The WSB QUICK MARKING SYSTEM ( 209-650) in White is an essential accessory for organizing and labeling your terminal blocks and connectors. Designed for efficient snap-on installation, this marker boasts a 5mm width and features vertical marking with black symbols, ensuring clear identification. With a UL 94V-2 flammability rating and halogen-free construction, it prioritizes safety in any application. Part of the 209 series, it guarantees compatibility and reliability. Perfect for use in barrier strip jumpers, covers, and markers, this non-stretchable marker is a must-have for streamlined cable management. Elevate your marking system with the WSB QUICK MARKING SYSTEM.