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".

Low-dust chalk for use on most chalkboards. Makes clean, smooth lines and erases easily. Great for classrooms. Color(s): White; Number of Colors: 1; Age Recommendation: Ages 4 and Up; Length: 3".