The Myasishchev M4 "Bison" was a Soviet heavy jet bomber from the Cold War period. It was retired from front-line service after the end of the Soviet Union.
Wikipedia has more information about the original.
This item consists of a sprue with 2 models of the long-nosed Myasishchev 3M maritime reconnaissance variant. The model is simply an upscaled version of my 1/1200 model of the airplane. No details have been added.