Introducing the MINIATURE WSB QUICK MARKING SY ( 264-904), a must-have accessory for efficient organization of terminal blocks and connectors. This sleek white marker, part of the 264 series, boasts a snap-on mating type for easy installation. Not only is it halogen-free for environmentally-conscious users, but it also offers exceptional fire safety with a UL 94V-0 flammability rating. With a 5mm width and horizontal marking direction, it ensures clear and precise labeling with black numbers. Perfect for Barrier Strip Jumpers, Covers & Markers, and other terminal block applications, the WSB QUICK MARKING SY (acronym: 264904) is a reliable solution for industrial and commercial settings.