Introducing the WSB QUICK MARKING SYSTEM ( 249-672), a must-have accessory for efficient and organized terminal block marking. This white marker, part of the 249 series, features a snap-on mating type for easy installation. With a non-stretchable design and halogen-free construction, it ensures safety and durability. The black marking color, UL 94V-2 flammability rating, and 5mm width make it ideal for clear and compliant vertical marking. Perfect for use with barrier strips and terminal blocks, this marker is RoHS compliant and guarantees reliable performance in various applications. Transform your marking process with the WSB QUICK MARKING SYSTEM.