- Soviet Union Stalin’s Hammer B-4 Howitzer Military MOC-89751 with 353 pieces is a set in the Military collection. This MOC-89751 comes with PDF instruction which is easy to build and find the missing pieces.
- The MOC-89751 includes 353 high-quality bricks, made from 100% ABS plastic so extremely safe for children, can be replaced with other brands on the market.