Graphite powder what is the difference?
Lead chemical symbol Pb, belonging to heavy metals, toxic to the human body, excessive intake of lead will accumulate in the body, the body can not take the initiative to discharge, a great harm.
Graphite is a isomer of carbon, chemical symbol C, non-metallic, non-toxic, relatively smooth, can be rubbed on the key, harmless to the baby.
So the pencils are not made of lead, but made of graphite, which prevents the children from damaging their bodies by biting their pencil heads. Hope to adopt!
