Irwin Strait-Line Permanent Marking Chalk - 4 lbs RE130 square anvil: more resistant to

square anvil: more resistant to long term fatigue than a 1/2 in

95 Fixed emissivity

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ENDURA-BOND™

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Irwin Strait-Line Permanent Marking Chalk - 4 lbs RE130 square anvil: more resistant toGreat for extreme outdoor conditions because it can withstand harsh weather conditions and months of jobsite wear. Flip cap keeps the chalk in the bottle where you want it and stops it from spilling out in areas that you don't. Flip top cap also seals the chalk in an airtight chamber, keeping out moisture and reducing the risk of clumping Hi Flow Nozzle Cap: For improved chalk flow, quicker chalk fills, and less clumping Withstands months of weather