At Fisher Space Pen, we note several models of pens that we consider to be the “backbone” of our business. While the AG7, Bullet and Shuttle Series pens have always been the stars of the stories, the classic Cap-O-Matic Space Pen has truly been the blue-collar, workhorse of the bunch. Single hand activation makes this model the pen of choice for construction crews, law enforcement, firefighters, military, first responders, medical professionals, outdoorsman and women and anyone who demands dependability in their writing instruments. The non-reflective matte black powder coat finish is durable, while aesthetically appealing to the eye. The creation of the Cap-O-Matic allowed Fisher Space Pen to offer the same technology used by astronauts, in a single hand activation but at a price that everyone can afford! The Cap-O-Matic line utilizes cap activation to extend and retract the point, and each carries a pressurized PR style ink refill cartridge, which means that they offer all of the unique capabilities that are synonymous with Fisher products: they will write upside down - at any angle, under water, through grease, extreme temperatures (-30 to +250 degrees F), on almost any surface, three times longer than the average pen, and of course in the gravity free vacuum of space, and all of our pens are lifetime guaranteed for quality against all manufacturing defects.