The Space Pen Black Bullet Clip Ballpoint measures 133 mm (5.25 inches), with a closed length of 102 mm (4 inches). All Bullet Space Pen series contain a #PR4 Black Ink, Medium Point Pressurized Fisher Space Pen Refill.

Upside down, its side, through water, or in extreme temperatures, the Fisher Space Pen contains a sealed pressurized refill SPR that will perform. 

Specifications:

• Finish - Black Powder Coat
• Full length when closed - 3.60 inches
• Weight - 19gms
• Ink - Thixotropic Black
• Operates from -35˚C to 121˚C
• PR4 Pressurized refill
• Provided in a Gift Box