Fisher Space Pen Refill Ballpoint Fine Nib Blue sign in pen Bright Assorted color is easily

Bright Assorted color is easily noticeable

Media and Custom) to optimize your button functions

numbered coloured tabs from 1 to 10 allow for instant indexing

Canon P14D

eraser etc) displayed in picture are sold separately

Fisher Space Pen Refill Ballpoint Fine Nib Blue sign in pen Bright Assorted color is easilyDescriptionSpecificationsShipping Paul C. Fisher developed the pressurized refill for NASA in 1965. It's still in use today on manned space flights because it performs when other pens fail. The combination of tungsten carbide ball point and thixotropic ink in a hermetically sealed cartridge pressurized at nearly 35 pounds per square inch allows it to write in freezing cold, boiling heat, under water and at any angle even upside down! Pressurized Space