Strait-Line® Lumber Marking Crayon, Black | IRW-66404

Irwin's Lumber Crayons are smear-proof which help create marks with high color contrasts to improve organization and reduce errors. They are used to write on lumber (rough or smooth), metal, plastic, concrete, cardboard, paper, and other similar surface

• For use on oily, slick, wet, cold, or dry surfaces
• Ideal for lumber, concrete, ceramics, and metal
• Non-toxic, waterproof
• Color: black