This model is in 1/700 scale. The aircraft are armed with two unguided bombs and have two external fuel tanks (One of each under each wing). The 12x MIG-21 Fishbed aircraft are connected as a single sprue by a wire under the main body of the aircraft. Once the wires are cut the model does not require finishing.
According to Wikipedia: "The Mikoyan-Gurevich MiG-21 (NATO reporting name: Fishbed) is a supersonic jet fighter aircraft, designed by the Mikoyan-Gurevich Design Bureau in the Soviet Union. It was popularly nicknamed "Balalaika", from the aircraft's planform-view resemblance to the Russian stringed musical instrument or olowek (English: pencil) by Polish pilots due to the shape of its fuselage."