Work through the toughest conditions with these Marks A Lot UltraDuty Permanent Markers. Designed for moments when traditional permanent markers aren't strong enough, industrial-grade markers are ideal for workshops, warehouses and construction sites. They work on metal pipes. Industrial markers are also excellent for writing on plastic bins, wood pallets and concrete walls. Sturdy tip also writes clearly on wet, dusty, oily and abrasive surfaces without clogging. Sharp, 1.0mm point of the bullet tip also makes it easy to write consistent and clean lines. Great as outdoor permanent marking, the specially engineered, black marker ink is also resistant to water, abrasion and smearing while still remaining bold and visible. Industrial ink won't dry out when the cap is left off for up to 72 hours. Useful, built-in clip keeps the marker from rolling off surfaces and offers a way to loop into lanyards for extra security. Assorted colors include black, red and blue.
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