This IRWIN Strait-Line Standard Marking Chalk creates temporary marks that provide great visibility. The versatile formula is designed for both interior and exterior applications. Each bottle of IRWIN Strait-Line marking chalk features a flip-top cap that is specially engineered for an airtight seal that keeps moisture out and minimizes clumping.
- Interior or exterior use
- Temporary marking chalk and provides great visibility
- High visibility chalk for self chalking line reels
- Proprietary formulations for dark, sharp lines and reliable performance
- Comes in a plastic container