0.5mm ballpoint pen refills, set of 3 colors: blue, red, and black, easy to use with a knock mechanism. - Brand: uni - Model: JETSTREAM - Ball diameter: 0.5mm - Colors: 2 blue, 2 red, 5 black - Quantity: 3-color set - Knock type: Knock type SXR-5 2 blue 2 red 5 black Total of 9 refills. I accidentally purchased these, so I am selling them new and unused. =============================== These are new and unused, but they have been handled by a person. Please purchase only if you understand that they are used items. Also, as I am a private seller, there may be oversights in the inspection. Please refrain from purchasing if you are looking for a perfect item. ☆Please read my profile☆ * Immediate purchase is welcome. * Packaging may use recycled materials. * Please refrain from excessive price negotiations. Feel free to comment if you have any questions. Thank you for looking!