Mark Lumber, Steel, Concrete, Masonry - All Rough Surfaces.
Bright Yellow Color.
The CRL Dixon Lumber Crayon marks lumber, steel, concrete and most rough surfaces. Extruded under tremendous pressure, they last up to ten times longer than molded wax or chalk crayons.
Strong and long wearing, they are water, fade and smear resistant.
They come paper covered, 4-1/2 inches (114.3 millimeters) long, 1/2 inch (12.7 millimeter) in diameter, hexagon shaped.