Thank you for viewing. This is an oil-based ballpoint pen that stationery YouTuber Siisā also introduced in his video. I used it a few times after purchasing it, but I'm not planning to use it anymore, so I'm putting it up for sale. There are almost no scratches or stains. Retail price: 5500 yen ○ Product Details Ball diameter: 0.7mm Mechanism: Double action retractable Color/Pattern: Eternal Red Ink type: Acro Ink Ink color: Black ink Material: Shaft: Urethane resin, Sheath: Aluminum, double anodized Name entry: Shaft sheath (laser engraving/silk screen printing) Size: Maximum diameter φ13.4mm, Total length 120.8mm Weight: 25g Individual packaging size: 145 x 38 x 38mm Individual packaging weight: 73.8g / Dedicated case Case used: Dedicated case Refill: BRFN-30F-B (black) Please feel free to comment if you have any questions. Type: Ballpoint pen Ink: Oil-based Features: Single color Body material: Metal