WebertyOn a related note, how soft is it/how easily will it wear down? The lifetime seems like it would depend on how heavy handed the writer is and how soft it is/how easily it will wear down. Similar to woodless graphite pencils.
lalunaselenaI have a keychain version of this, and it seems like it would last a very long time; but it will wear like a crayon (get fatter as it goes) The metal is a type of Lead (not graphite,but actual lead) from my research - supposedly safe lead...