Crayons Lumber Hard White is a professional-grade marking tool designed for marking on lumber, concrete, metal, and other rough surfaces common in construction and electrical work. These hard-wearing crayons deliver bold, visible marks that resist smudging and weathering, making them essential for job site layout, electrical conduit marking, and general trade applications. Ideal for electricians, carpenters, builders, and facilities managers who need reliable marking solutions on site.
