This is an injection-plastic military vehicle model kit.
From the manufacturer:
As U.S. bomber operations began to take place at airfields all over Southern England from the summer of 1942, the vehicles used in servicing Liberators and Flying Fortresses were slowly changing from the standard RAF support vehicles to specialized U.S. Air Force equipment. From fuel trailers to bomb trolleys, Bedfords were quickly being replaced by Chevrolets.
The Autocar U-7144-T 4x4 tractor unit was used extensively by the U.S. military from 1942 onwards and was certainly found on most, if not all USAAF airfields in Britain, particularly in conjunction with the standard F-1 fuel trailer. With many aircraft requiring refuelling on a daily basis, it was usual for each base to have numerous examples of the U-7144-T available at any one time.
The Chevrolet M6 bomb utility 4x4 service truck was capable of carrying a small number of bombs in its own right, but was more commonly used in conjunction with the M5 bomb trailer. Indeed, it was capable of towing up to five fully loaded M5 bomb trailers, which was just as well considering the number of missions USAAF bomber crews were required to undertake.
The Cushman Model 39 Package Car, a light three-wheeled utility vehicle, was used for a multitude of light duties on USAAF bases. A development of a motor scooter design, the single wheel at the back provided the power for the vehicle, which allowed a small cargo box to be fitted at the front. Again, the Cushman would have been a regular feature on a USAAF airfield.
In addition to the Cushman Model 39 Package Car, the Chevrolet M6 bomb service truck, the M5 bomb trailer, the Autocar U-7144-T 4x4 tractor unit, and the F-1 fuel trailer, this kit also includes 2 1,000-pound bombs and 4 500-pound bombs.