Irwin Strait-Line marking chalks have an innovative flip-top cap that keeps the chalk in the bottle where you want it. The flip-top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping.
For all reel type chalk line boxes
For use on a variety of surfaces including wood, drywall, concrete, stone and metal
Packaged in plastic squeeze bottles with fast-fill spout