This is a detailed model of the experimental heavy tank that was developed at the end of 1959. This special purpose tank was intended to fight on cross county terrain, inaccessible to conventional tanks, acting as a heavy breakthrough tank and if necessasy withstanding even the shockwave of a nuclear explosion. It was planned as a tank Supreme Command Reserve. The model includes optional turret parts for 2 versions, photo etched parts and a scale figure. The kit enables 3 different versions to be built. Decals are included.