Fisher Ballpoint Pen Bullet 600SH Chrome Space Shuttle BULLET fisher SPACE PEN Japan Genuine Product ■Product Name: Ballpoint Pen BULLET space shuttle ■Color: Chrome ■Manufacturer: fisher SPACE PEN (Fisher) ■Specifications: Cap type ■Size ・Length: Approximately 139mm (when writing) ・Shaft diameter: 9.8mmφ ■Brand new, unused ■Retail price: 9000 yen The Fisher Space Pen is actually used by all astronauts after rigorous testing by NASA (National Aeronautics and Space Administration). Normal ballpoint pens rely on gravity to make the ink flow to the tip of the ball, but the Space Pen uses the pressure of nitrogen gas sealed inside to move the ink to the ballpoint tip. Therefore, it can be written immediately even upside down, and can write smoothly in zero gravity, underwater, and extreme temperatures (-34 to 121°C). In addition, the special, highly adhesive ink is sealed, so there is no dry-up and it can be stored for over 100 years. This heavy-duty nature that doesn't choose conditions, and the all-around ability to write on glossy surfaces such as photos and oily surfaces. That is the feature of the Space Pen. Paul Fisher, the representative of the Fisher Company, invested over $1 million in the development of this Space Pen. Shipped via Mercari anonymous delivery. #space #spaceshuttle #NASA #ballpointpen #fisherspacepen