- Irwin 64901 Chalk Refills. High visibility chalk for self chalking line reels
- 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
- 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
- 8 Oz, Standard Blue
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