Irwin STRAIT-LINE 1/2 in. x 4-1/2 in. Blue Standard Lumber Crayon

The Irwin STRAIT-LINE 1/2 in. x 4-1/2 in. Blue Standard Lumber Crayon provides bold, long-lasting marks on a wide variety of rough and smooth materials. Built with a non-toxic, waterproof formula, this crayon delivers exceptional visibility and durability on surfaces such as lumber, concrete, ceramics, and metal. Designed for demanding jobsite conditions, this lumber crayon works effectively on oily, slick, wet, cold, or dry surfaces. Its ergonomic construction ensures a comfortable and secure grip for consistent marking during layout, roofing, paneling, and construction tasks.