Thank you for viewing. ▷ Jetstream Refill 0.5mm Black x 5 Red x 1 Blue x 1 (※Unused, but opened) ＜Compatible with＞ SXN-150-05 and others This is a combined listing of the above. I accidentally purchased these as replacement refills for everyday use. Therefore, the blue one is unused but has been opened. Please understand this beforehand. Although unused, these items have been handled by a person, so please refrain from purchasing if you are seeking items in overly perfect condition. If you understand the information in the profile section, you can purchase immediately. Price reduction requests are not accepted. If it has been more than a month since the item was listed, please leave a comment in the comment section before purchasing, and I will reconfirm the item's condition. If you have any other questions, please feel free to comment. Thank you.