Irwin STRAIT-LINE Red Permanent Lumber Crayon

The Irwin STRAIT-LINE Red Permanent Lumber Crayon delivers bold, visible markings on a wide variety of tough jobsite surfaces. Designed for versatility and durability, this non-toxic and waterproof crayon works effectively on oily, slick, wet, cold, or dry materials, including lumber, concrete, ceramics, and metal. Built to withstand harsh environmental conditions, the weather-resistant marks remain clearly visible through sun exposure and jobsite wear. It is an ideal marking tool for concrete layout, exterior layout, roofing, and steel fabrication applications.