The concept of the T-12 consisted of a synthesis of the experience gained during the design and mass production of the T-18, and the idea of a multi-tier deployment of weapons, which was consistently tested by American engineers in the design of prototypes of a medium tank. The T-12 had a simple hull structure between two tracks with small-bogie suspension. Kit consists of over 300 parts w/refined detail, multi-slide moulded upper hull and turret, photo etched parts and individual tracks.