기능

• Equipped with an Olens system in which the tip pipe slides as the core decreases.
• No wick = The pipe always supports the wick, so the wick wont break.
• * If the remaining core becomes short, the pipe will slide suddenly during writing.
• Remove the shortened core as it may cause clogging.
• * The pipe will touch the paper, so strong writing may leave marks on the paper.
• With Eraser (With Cleaner Pin)