INKA® KEY CHAIN PEN - The INKA® Key Chain Pen is housed in a durable, lightweight, and watertight aluminum body and is designed to work as an easy access quick-use pen that converts into a full-size pen. This unique Write Anywhere® pen uses a pressurized ink cartridge, allowing it to write in extreme environments. Writes upside down, in extreme temperatures and at any altitude.
Pen casing is black; ink is waterproof blue.