Whether you’re on a construction site, in a warehouse or workshop, or out in the field, you can rely on Marks A Lot UltraDuty permanent markers.
Imperfect Surface - No Problem!
Write on wet, oily, greasy, dusty, abrasive surfaces
Sturdy, Break-Resistant Tip
Works on concrete, cinderblock, wood, metal, plastic, glass & more
Won't Dry Out
Won't dry out uncapped for up to 72 hours; writes smooth, no clogging
Industrial Grade Ink
Bold permanent ink is water, abrasion, smear and fade resistant