White Chalk

White Chalk are made of highly-refined calcium carbonate which keep dust to minimum. It writes much longer and provides excellent writing and erasing on green board. Packed in box of 100pcs, best choice for the school and office.

• Dust Free Chalk: Dust is rarely blown in the air because the heavy particles of calcium carbonate is fallen down.
• Keep Hands Clean: Special formulation prevents dust form sticking to fingers.
• Non-Toxic: Conforms to EN71 and ASTM D4236.