Excellent writing & erasing. It writes much longer. Writing length – approx. 420M / stick Best choice for the school and office. Keep away from moisture and external shock. Brand – Mungyo Set of 10 Packs, each pack contains 10 chalks in assorted colors
Buy the book Mungyo Dustless Chalk – Assorted colors – 10×10 set (100 chalks total) from Ideakart.com.