Fisher Space Pen (SPR4) Refills for Bullet Fisher Space Pen, Black, 3 Pack

Fisher Space Pen Pressurized Refills (PR series) Fits the Following Space Pen product categories: Bullet, Astronaut, Shuttle, X-750, Space-Tec, Military, Zero Gravity, Futura, Cap-O-Matic Adapters Available to Fit Parker Style Pens. Blister Carded for Peg Board Display.

Writes upside down. Writes underwater. Operates from -30 degrees F to 250 degrees F Pack of 3