Irwin Strait-Line 5 lb. Permanent Marking Chalk Red 1 pk
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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 use on a variety of surfaces including wood, drywall, concrete, stone and metal
High visibility chalk for self chalking line reels