Prang Hygieia Dustless Chalk, White, Box Of 12

Dustless for less clean-up 95% pure calcium carbonate chalk. Free of foreign materials that can scar chalkboards. Certified AP nontoxic. ACMI Certified AP Nontoxic. For detailed information see www.acmiart.org. Less harsh chemicals - made with fewer harsh chemicals, or safer chemicals than typical alternatives, helping reduce your use of and exposure to substances that may be more harmful to your health and the environment.