This is a Pentel Quick Sharp. It is also possible to sell the black and blue barrels individually. It is a side-knock type. *Even items listed as new and unused may have scratches, scuffs, or dirt due to long-term storage. We await purchases from those who understand this. For unopened items, we have not been able to confirm their operation, so please understand this in advance. Especially for ballpoint pens, the ink may not come out. If you wish to check the ink, please leave a comment. We cannot guarantee the ink. Before purchasing, please check your profile. Many of the items listed are stationery such as writing instruments. If you like, please also view our other listings. All items can be purchased immediately. If you wish to check the condition of the item, please leave a comment. We also accept additional images. We will offer discounts for purchases of sets or bundled requests. Thank you for your understanding.