Standard/Temporary Formulation: Specifically engineered for non-permanent lines. Unlike red or black chalk, this blue formula provides excellent contrast and visibility during layout but can be easily erased, washed away, or covered up once the work is complete.

Surface Flexibility: Snaps clean, distinct lines across a variety of materials including wood, drywall, concrete, stone, and metal.

Airtight Packaging: Packaged in a 5 lb. bulk container with an innovative flip-top cap that creates an airtight seal. This keeps moisture out of the chamber, significantly reducing the risk of clumping and ensuring a smooth flow.