... N.W.: 24KGS CHALK:1. Passed EN71, ASTM D-4236 & REACH2. Non toxic, white color, assorted colors, colors can be adjusted3 ... material prescription, So as a result of bright color, clear marks, uneasy broken, with less dust, ... and other works.5. Packing details: Color box Specification: 9.5X80MM 100 pcs/box, 24 boxes/carton Carton size: ... its fine quality and reasonable prices. COLOR CHALK 100 pcs 6 COLORS