8 oz Irwin Blue Chalk Refills

Chalk Refill, 8 ounces of blue chalk refill for all reel type chalk line boxes, packaged in a plastic squeeze bottle with fast-fill spout, and snap cap to prevent spilling and moisture in chalk. Chalk containers are filled by weight not volume.
 

California Proposition 65 Warning: This product contains chemicals known to the state of California to cause cancer, birth defects or other reproductive harm.