The Sakasafuji Pen: How to Reveal the Inverted Mt. Fuji

A floating action pen, continuously produced since its inception in 1946 by ESKESEN (Denmark). This design embodies the narrative of "Sakasafuji," the phenomenon of Mt. Fuji reflecting perfectly on the water's surface. As you write, only clouds and the words "HAVE A GOOD DAY" are visible. When you invert the pen, the clouds begin to move, and Mt. Fuji emerges. Like melting snow, the blue hue flows downwards, revealing the inverted reflection. A six-second story unfolds with your pen. Enjoy this moment to refresh your mind. HAVE A GOOD DAY! ※ Usage: Twist the grip of the pen to extend and retract the tip. Please avoid writing with the pen tip facing upwards and ensure the tip is retracted after use, as this can cause ink leakage. Air bubbles may be visible within the floating portion; this is a characteristic of the product and not a defect. Do not expose to extreme cold or heat. Discontinue use immediately if any damage or cracks are observed. ※ Refills: As this pen is made in Denmark, standard domestic refills are not compatible. Furthermore, removing the refill requires force, and even the manufacturer does not recommend attempting to replace it yourself. Materials: ABS Resin, Chrome Steel, PET, PP, Mineral Oil (Plant-derived mineral oil, US FDA approved), 0.8mm Oil-based ink Size: W143mm, H11mm Manufactured in: Denmark Design: Tomohiro Ikegaya (Japan)