Hygieia Dustless Board Chalk, 3 1/4 X 0.38. Assorted, 12/Box

Nearly pure, 95% calcium carbonate is free of all materials that could scratch, streak or pit your board surface. Special mineral cohesion agents ensure clean, dust-free use. Standard cylindrical design fits most chalk holders. School-approved, nontoxic. Color(s): Assorted; Number of Colors: 6; Age Recommendation: Ages 5 and Up; Length: 3.25″. Brand: Dixon Manufacturer Part Number: 61400 Color: Assorted Assembled Product Weight: 0.26 lb Manufacturer: Dixon Ticonderoga Company Assembled Product Dimensions (L x W x H): 3.30 x 0.40 x 0.89 Inches