Fisher Space Pen Pressurized Refill - Black / Blue Collection_Back Shelf The high-quality finish has a

The high-quality finish has a pleasantly warm feel and

This green edition reflects the greenery of nature

All metal parts and the barrel are finished with a tough anthracite-colored PVD-coating made of titanium

second time zone indication in key shape and CyS emblem with red Superluminova applied

As with the original Homo Sapiens

Fisher Space Pen Pressurized Refill - Black / Blue Collection_Back Shelf The high-quality finish has aPaul C. Fisher developed the pressurized refill for NASA in 1966. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ballpoint and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 lbs. per square inch allows it to write in freezing cold, boiling heat, underwater and at any angle, even upside down!