Debuting on the Apollo 7 mission in 1968, the Fisher Space Pen has been on many NASA manned space flights since then. With a Space Pen, you can write upside down, underwater, in extreme temperatures and even over grease. It has a tungsten-carbide ballpoint to write for longer, more cleanly, and more consistently. The Space Pen’s ink has been pressurised and filled with thixotropic ink, unlike regular ballpoint pens, which rely on gravity to function. The X-750 Explorer Space Pen range might look small, but place the cap on its end, and you’ll create a full size, well-weighted and balanced pen, which has been paired with a rubberised grip for comfortable extended use. Its all-metal barrel shines with an iridescent blueberry finish for a sleek, stylish and super practical accessory. Features:   Made in the USA. Withstands temperatures of -34°C to 121°C. Writes underwater, upside down, over most grease, and in a vacuum. Thixotropic ink in pressurised reservoir writes at any angle. Precision steel socket and tungsten-carbide ballpoint. Presented in a Fisher Space Pen storage case. X-750 Explorer Pen features a blueberry body with chrome clip and band. Estimated shelf-life: 100 years. Presented in a case and gift box Design: Blueberry with Chrome Trim.  Length: Approx. 11cm