MINIATURE WSB QUICK MARKING SY ( 248-536) is a essential accessory for efficient organization and identification of terminal blocks in electrical systems. Designed in a sleek white color with a 5mm black marking, this snap-on marker guarantees clear and durable labeling. Its horizontal marking direction and number format provide quick and convenient identification of connections. Made with halogen-free materials, it ensures safety and compliance with environmental regulations. Perfect for use in barrier strip jumpers, covers, and connectors, this non-stretchable marker is a must-have for streamlined and organized wiring setups.