Retractable ballpoint pen is imprinted with "U.S. Government" and is a rugged, yet economic workhorse of the U.S. Government and Military. Pen is designed to write anywhere including land or water regardless of climate and altitude. Ink does not skip or smear. Ink is contained in a brass refill cartridge for extended shelf life. The barrel color indicates ink color. Refillable ballpoint pen writes one mile.