Usage of chalk holder:
When the chalk gets short, turn a nut at the tip of the holder to loosen and pull out the chalk. Once the suitable length to write is out, tighten the nut again before using it.
＊ Please use “School series Dustless chalk slim type SC-6 , SC-7 ”
to replace with the old one. It is recommended the new chalk be broken into half before you put it in the holder; otherwise, it would get broken easily.
＊The chalk in the holder in the notebook blackboard set is already a half size of the regular chalk.