Prang® Hygieia® Dustless Board Chalk, Assorted Colors, 12/pkg, Set of 24bxs

This superior chalk is 95% pure calcium carbonate and free of foreign materials that work their way into the board surface causing scratching, streaking and pitting. Round stick 3-1/4" x 3/8" fits most chalk chucks. Includes 12 sticks in assorted colors per pack. AP certified non-toxic. 12 pieces of box, bundle of 24 boxes, 288 pieces total• Round stick measures 3-1/4" x 3/8" • fits many chalk chucks • Great for school, home or office are being used for writing or drawing