Fisher Space Pen Backpacker Clear Silver Pen

The Fisher Space Pen Backpacker is the pen that goes anywhere, writes anywhere, and attaches to anything. The Backpacker Space Pen can hang upside down indefinitely but works immediately when needed. This pen has been a fan favorite for years because it’s so easy to carry. Attach it to your keys, backpack, belt loop, hiking gear, fishing line, camping equipment, and much more. Each features a PR-style pressurized ink cartridge, which means they offer all the unique capabilities synonymous with Fisher products: they’ll write upside down-at any angle, underwater, through grease, extreme temperatures (-30 to +250 degrees F), on almost any surface, last three times longer than the average pen, and, of course, in the gravity-free vacuum of space