Irwin 64801 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

Weight: 4 oz.
Color: Blue