Irwin - Strait-Line Marking Chalk

High visibility chalk for self chalking line reels In Red or Blue

For use on a variety of surfaces including wood, drywall, concrete, stone, and metal

Permanent colors, especially red, produce long lasting lines that won't fade

Chalk containers are filled by weight, not volume

Temporary colors, especially white and blue, provide high visibility and are easy to remove

Proprietary formulations for dark, sharp lines and reliable performance

Chalk containers are filled by weight not volume

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