The famous German Junkers Stuka dive bomber JU 87 B-2 was in mass production from December 1939. For the quick conversion of the bomber aimed at use under different conditions, factory modification kits were produced, or Umrüstbausätze in German. . These were numbered and the fourth set, the U4, represented skis to be installed on the main and tail landing gears instead of wheels.The Stuka 87 B-2 with skis was able to take off and land on snow-covered airfields without slipping into loose snow.Decals for German StG 77 included. Kit contains 89 parts. 2 pilot figures included. No glue required