Irwin 64901 8 Ounce Blue Standard Marking Chalk

• 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.
• Temporary colors, especially white and blue, provide high visibility and are easy to remove.
• Proprietary formulations for dark, sharp lines and reliable performance.

64901