Precautions in use
Pencils・colored pencils ：Is there any harm to lick the pencil lead
Pencils are made by baking graphite (coral mate) and clay. Tombow’s products meet the standard value of hazardous substances such as heavy metals according to the safety standards for heavy metals specified in JIS 6006 (JIS standard for pencils). We have not received reports of health damage so far, but do not put it in the mouth since it is not produced as food.