4 lb. Red Strait-Line® Permanent Marking Chalk | IRW-4935525

Irwin's 4 lb. Red Strait-Line Permanent Marking Chalk is strong enough to hold up under the toughest conditions remaining visible after weeks of weather exposure and job site wear and tear. The highly visible Red chalk line gives confidence to any contractor. This chalk is made from a proprietary formulation for the highest performance results.

• Visible after weeks of weather exposure and jobsite wear
• Reduces need for spray sealant
• Permanent, stains surfaces
• Provides greater visibility in standard lighting conditions
• Durable formula is weather-resistant and suitable for interior or exterior use