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With the Stanley 1-47-804 chalk line powder, you can quickly snap crisp, accurate reference lines across the jobsite. The vivid red colour ensures outstanding visibility on rough materials such as masonry, concrete, and wood. Thanks to its water-resistant formula, the powder adheres firmly to surfaces and stands up reliably to changing outdoor weather conditions. The 225 g bottle features a practical dispenser spout, allowing you to refill any standard chalk line reel quickly and without mess. It gives you the clear, durable layout marks you need for roofing, carpentry, and masonry projects.