Engineered for excellence in the lumber and construction industries this lumber crayon offers superior marking performance across a wide range of surfaces including concrete rubber wood metal and plastic. Its innovative clay-based formula ensures smooth and quick markings that resist fading even on wet frozen or treated wood. With a marking temperature range from -20°F to 150°F it is ideal for challenging environments providing reliable visibility and consistency. The enhanced durability of this crayon reduces breakage allowing for longer usage and improved efficiency on the job site making it an essential tool for professionals and DIY enthusiasts alike.