Single cylinder steam engine

The mini steam engine model is connected with a small boiler, which can be used as a model ship or a small model, which can be used as the engine of the model. Is also a very good collection of significance of the arts and crafts.
Product Description: long 35MM, wide 24MM, high 31MM, weight 46G. flywheel diameter 21.5MM, the diameter of the shaft diameter 4.5MM. 2MM.