Strait-Line 4935526 Permanent Staining Marking Chalk, Black, 5 Lbs BF20 High tensile strength steel will

High tensile strength steel will not bend from hand pressure and provides most efficient conversion of hand force to cutting power

Blends in with surroundings for a professional finish

All-Purpose shelf board

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Strait-Line 4935526 Permanent Staining Marking Chalk, Black, 5 Lbs BF20 High tensile strength steel willHighlights: Color : Black Size : 5 lb Weatherability is 4+ months Uses outdoor exterior and concrete layout Extreme conditions long term applications Weatherproof lines withstand months of weather, sun and jobsite wear and tear Reduces the need for spraying a sealant on snapped lines The flip top cap seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping Cancer and Reproductive Harm www. P65Warnings. ca. gov.