The Flagstaff The guidon staff comes in three sizes for the US military: 8′ – for guidon flags and 3′ x 4′ colors (all services) 9’6″ – for 4’4″ x 5’6″ flags (all but the Air Force) 9′ – for 4’4″ x 5’6″ flags (Air Force, for some reason, as of 2019) The Finial A finial is a device or …