Nihon Rikagaku Kogyo Dustless Chalk DCC-72-W White 72 pieces 20 boxes 2147345075213

Contains recycled scallop shell material. For clearer and smoother writing. Made of calcium carbonate that does not easily scatter powder. ●Quantity: 72 pieces x 20 boxes ●Chalk dimensions (diameter) [mm]: 11.2 ●Chalk dimensions (length) [mm]: 63.5 ●Surface coating: Yes ●Color blindness compatible: ○ ●Color: White ●Material: Calcium carbonate ●Bulk purchase ●Country of manufacture: Japan