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): White; Number of Colors: 1; Age Recommendation: Ages 5 and Up; Length: 3.25".

Crayola Chalk gives you solid, consistent color in a strong stick that resists breaking! Use it on chalkboards, construction paper, cardboard, craft paper and brown paper bags. This classroom chalk creates less dust for crisp, clean doodles, notes and drawings. It's a classroom essential for teachers, with the reliability you expect from Crayola art supplies. Stock up on chalk for classrooms, craft rooms and art easels with blackboard chalk from Crayola. Color(s): White; Number of Colors: 1; Age Recommendation: Ages 4 and Up; Length: 3".