Irwin 4935520 Strait Line Midnight Black Permanent Marking Chalk Refill

• High visibility chalk for self-chalking line reels.
• Visible after weeks of weather exposure and jobsite ware
• For use on a variety of surfaces including wood, drywall, concrete, stone, and metal
• Permanent colors, especially black and red, produce long lasting lines that won’t fade.
• Temporary colors, especially white and blue, provide high visibility and are easy to remove.
• Proprietary formulations for dark, sharp lines and reliable performance.

4935520

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