Thank you for viewing. This is a siphon-type ballpoint pen. It's likely from over 23 years ago, around the beginning of the Heisei era. It was stored on a shelf on a desk at home. When I tried to open the box, it cracked due to aging. The coffee-like liquid moves up and down with body temperature, making you feel like you've visited an old-fashioned coffee shop. It's a ballpoint pen that you can look at for a while. ・Pen length: 14 cm ・Siphon length: 5 cm ・Base: 4 cm Unfortunately, the ink didn't come out. I disassembled the pen, so it might be possible to revive it with a replacement ink cartridge, but it's probably best to consider it as an antique ornament. If you are interested in a retro and somewhat unusual ballpoint pen that is now discontinued, please consider it. There are no noticeable scratches, and there may be some minor dirt, but it's as shown in the photos. Please refrain from purchasing if you are sensitive to used items.