Fisher Space Pen Company Trekker Tactical Space Pen
The ultimate in dependability. Every Space Pen is guaranteed to perform in temperatures from -30 to 250 degrees F, underwater, in zero gravity, at any angle even upside down and over grease. Its reliability means it's the only pen you'll ever need. Matte Black Keychain Pen with Fisher Rubber Comfort Grip. Comes with Carabiner and lanyard.