Presenting the Irwin STRAIT-LINE 2-1/2 lb Red Permanent Chalk designed for reliable, high-visibility line marking on outdoor job sites. This chalk ships in a durable plastic squeeze bottle equipped with a quick-fill spout for fast, on-the-fly loading between measurements. Built for exterior use, it adheres to a range of substrates while keeping lines crisp. The vivid red pigment remains legible long after exposure to sun, rain, and foot traffic, reducing the need for re-marking.

Benefits at a glance: A dependable marking solution that improves workflow by providing permanent lines that stay visible throughout project timelines, helping crews stay aligned from start to finish in challenging outdoor environments.

• Size & packaging: 2-1/2 lb capacity in a plastic bottle with a fast-fill spout for quick reloading on busy jobsites.
• Permanent red color: Long-lasting, fade-resistant markings that maintain high contrast over time.
• Exterior-grade compatibility: Marks wood, drywall, concrete, stone, and metal with strong visibility.
• Enhanced visibility: Red chalk creates sharp marks that are easy to see in bright light and on textured surfaces.
• Weather-ready durability: Formulated to endure outdoor conditions without fading or washing away.

Experience lasting accuracy: This chalk stands out for its durable permanence, versatile substrate compatibility, and simple, jobsite-friendly packaging. Whether you're framing, marking layouts, or laying out cuts, the bold red lines stay legible, helping crews stay on schedule from start to finish.