Pioneering in technology the Trekker pen can hang upside down forever yet function immediately when needed. Always have a reliable pen available for immediate use. Attach your keys to the Trekker Pen. The Trekker space pen with a key chain attached to the posi-lock cap allows for easy accessibility. The Trekker space pen comes with a carabiner and a break-away lanyard, making it easily attachable to a belt loop, back pack, purse, climbing gear, briefcase or anything else that is within your reach. Functional in every situation and under every condition. Contains a Fisher PR4 Pressurized Refill, Medium Point, Black Ink.

Pioneering in technology, the Trekker pen can hang upside down forever yet function immediately when needed.

Writes through water, oil, dirt, and on shiny surfaces

Withstands temperatures of -30 deg F (-34 deg C) to 250 deg F (121 deg C)

Medium point black ink

Patented sealed-pressurized ink cartridge