Fisher Space Pen Cap o matic Pen

The Fisher Space Pen is guaranteed to perform in extreme conditions. Able to write underwater, over grease, in extreme temperatures both col d and hot, and at any angle even upside down, the cap o matic space pen uses a tungsten carbide ball point with thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 pounds per square inch. Extreme condition pen writes underwater, over grease, at any angle and from 30F 35C to 250F 121C Durable Plastic Barrel Chrome cap activates the pen for writing Length: 5.3 inches Assorted colors: Sorry no color choice barrel colors include black, white, red, yellow, green, blue, and burgundy