The Mighty Marker PM-23 Jumbo Industrial Paint Marker is purpose-built for the toughest jobs and now available in bulk 6-pack and 72-pack boxes. With a heavy 22ml fill of oil-based xylene paint, each marker delivers long-lasting, high-opacity marks even on rusty, wet, or oily surfaces — perfect for welders, contractors, and heavy-duty field work. The quick-drying paint is waterproof, UV-resistant, and abrasion-resistant, ensuring reliable visibility in both indoor and outdoor applications. Whether you're marking on steel, pipes, structural beams, plastics, or rough wood, the PM-23 performs with confidence and consistency. Its valve-action design prevents dry-out and maintains flow, while the replaceable chisel tip supports broad or precise application as needed. Engineered for professionals who demand maximum durability, the PM-23 is proudly manufactured in the USA and packaged to meet high-volume industrial needs.