12 Boxes per inner box, 72 Boxes per carton MST: 36.5x27.5x19CM G.W.: 17KGS N.W.: 16KGS CHALK:1. Passed EN71, ASTM D-4236 & REACH 2. Non toxic, white color, assorted colors, colors can be adjusted3. High quality and competitive price4. The chalks are shaped by the latest and advanced material prescription, So as a result of bright color, clear marks, uneasy broken, with less dust, Suitable for ...