CRESCENT 8 oz HardMark Blue Chalk Refill

Features
- HardMark Blue is a Crescent Lufkin proprietary marking chalk designed to be a brighter blue for increased line visibility regardless of the light condition or surface
- High visibility blue chalk designed to be three times more visible than standard chalks
- Unique bottle geometry prevents the bottle from rolling on sloped surfaces
- Easy fill bottle top design allows chalk to flow faster for quick refills